Heterocyclic Building Blocks-Thiazines

An article Polyethylene glycol-modified cystamine for fluorescent sensing WOS:000447384700022 published article about SIDE-CHAIN LENGTH; APPENDED NAPHTHALIMIDE; BLUE PHOTOLUMINESCENCE; HIGHLY FLUORESCENT; POLYMER; DYES; EMISSION; CHEMOSENSORS; SENSOR; IONS in [Shah, Tanveer-Ul-Hassan; Tahir, Mudassir Hussain; Liu, Hewen] Univ Sci & Technol China, Dept Polymer Sci & Engn, CAS Key Lab Soft Matter Chem, 96 Jinzhai Rd, Hefei 230026, Anhui, Peoples R China in 2019.0, Cited 51.0. Category: thiazines. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7

Tedious polymeric modifications, laborious syntheses, low water solubility, high cytotoxicity and low quantum yields are still the major concerns related to fluorescent materials used for biosensing applications. Here we report one-pot facile synthesis of polyethylene glycol (PEG)-modified cystamine-based multifunctional fluorescent dyes named as CPEG-168, CPEG-1000 and CPEG-2000, which can be used for biosensing and detection of both cations and anions in pure aqueous medium. Rapid response toward thiols could be achieved due to the presence of disulfide functionality and reversible redox property between thiol and disulfide. A cyclic structure is formed by (NH-H) intramolecular hydrogen bonding to produce electron dense region for strong fluorescence emission. The presence of -NH group made them sensitive toward Cu2+ ions, while excellent sensitivity toward pH and F- ions was provided by intramolecular hydrogen bonding between -NH groups. The increase in chain length of PEGs enhanced the fluorescence emission intensities due to the formation of more rigid structure, and hence, the desired quantum yields can be tuned by changing the chain length of PEG. The aforementioned properties along with high brightness in aqueous solution, at biological pH and temperature range, make these fluorescent dyes potential candidates for biosensing applications and detection of cations and anions.

About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Shah, TUH; Tahir, MH; Liu, HW or concate me.. Category: thiazines

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

Recently I am researching about NANOPARTICLES; MICELLE; RELEASE, Saw an article supported by the National Research Foundation of KoreaNational Research Foundation of Korea [NRF-2019R1A4A1024116, NRF-2019R1A2C2085962, NRF-2018M3A9E2024583]; Korea Research Institute of Bioscience & Biotechnology (KRIBB). Published in ELSEVIER SCIENCE INC in NEW YORK ,Authors: Jeong, C; Kim, J; Kim, YC. The CAS is 56-17-7. Through research, I have a further understanding and discovery of 2,2′-Disulfanediyldiethanamine dihydrochloride. Safety of 2,2′-Disulfanediyldiethanamine dihydrochloride

A multifunctional drug delivery system (MDDS) based on near-infrared (NIR) imaging was developed in various conformations for the accurate diagnosis and therapy of cancer. However, it remains challenging to develop an ideal structure for an MDDS with both exact and variable functionality. Herein, we report a fluorescence color-changeable branched-form heptamethine cyanine dye (PEG-4-CyP) that has both a simple structure and various functionality. The PEG-4-CyP was not only able to construct the nanoparticle (NP) structure by encapsulating DOX (PEG-4-CyP/DOX), but also showed change in the NIR fluorescence color by reacting with glutathione (GSH). The PEG-4-CyP/DOX was broken down in the redox microenvironment inside cancers because of the reduction reaction of PEG-4-CyP to GSH. As a result, the NP disruption, DOX release, and reactivity of PEG-4-CyP to GSH were visualized by NIR fluorescence color-change. Moreover, PEG-4-CyP/DOX showed an excellent chemophototherapeutic effect in cancer cells. This NIR fluorescence color-change strategy demonstrates the applicability of PEG-4-CyP as a novel MDDS able to provide a variety of information with a simple NP structure. (C) 2020 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.

About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Jeong, C; Kim, J; Kim, YC or concate me.. Safety of 2,2′-Disulfanediyldiethanamine dihydrochloride

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

Authors Andrgie, AT; Birhan, YS; Mekonnen, TW; Hanurry, EY; Darge, HF; Lee, RH; Chou, HY; Tsai, HC in MDPI published article about DRUG-DELIVERY; NANOPARTICLES; COMBINATION; MICELLES; CELLS in [Andrgie, Abegaz Tizazu; Birhan, Yihenew Simegniew; Mekonnen, Tefera Worku; Hanurry, Endiries Yibru; Darge, Haile Fentahun; Chou, Hsiao-Ying; Tsai, Hsieh-Chih] Natl Taiwan Univ Sci & Technol, Grad Inst Appl Sci & Technol, Taipei 106, Taiwan; [Lee, Rong-Ho] Natl Chung Hsing Univ, Dept Chem Engn, Taichung 402, Taiwan; [Tsai, Hsieh-Chih] Natl Taiwan Univ Sci & Technol, Adv Membrane Mat Ctr, Taipei 106, Taiwan in 2020.0, Cited 47.0. Recommanded Product: 56-17-7. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7

Polymeric prodrug-based delivery systems have been extensively studied to find a better solution for the limitations of a single drug and to improve the therapeutic and pharmacodynamics properties of chemotherapeutic agents, which can lead to efficient therapy. In this study, redox-responsive disulfide bond-containing amphiphilic heparin-chlorambucil conjugated polymeric prodrugs were designed and synthesized to enhance anti-tumor activities of chlorambucil. The conjugated prodrug could be self-assembled to form spherical vesicles with 61.33% chlorambucil grafting efficiency. The cell viability test results showed that the prodrug was biocompatible with normal cells (HaCaT) and that it selectively killed tumor cells (HeLa cells). The uptake of prodrugs by HeLa cells increased with time. Therefore, the designed prodrugs can be a better alternative as delivery vehicles for the chlorambucil controlled release in cancer cells.

About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Andrgie, AT; Birhan, YS; Mekonnen, TW; Hanurry, EY; Darge, HF; Lee, RH; Chou, HY; Tsai, HC or concate me.. Recommanded Product: 56-17-7

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

I found the field of Engineering; Materials Science very interesting. Saw the article Pre-blocked molecular shuttle as an in-situ real-time theranostics published in 2019.0. Computed Properties of C4H14Cl2N2S2, Reprint Addresses Jiang, C (corresponding author), Fudan Univ, Sch Pharm, Dept Pharmaceut, Key Lab Smart Drug Delivery,Minist Educ,State Key, 826 Zhangheng Rd, Shanghai 201203, Peoples R China.. The CAS is 56-17-7. Through research, I have a further understanding and discovery of 2,2′-Disulfanediyldiethanamine dihydrochloride

Real-time monitor of drug-release from drug formulations in a noninvasive way can provide spatio-temporal information for drug activation and guide further clinical rational administration. In this work, a molecular shuttle, as a typical nanosized artificial molecular machine, was managed to act as a conceptually-new nanotheranostics for oxaliplatin. A post-recognition strategy was utilized, where a default supramolecular-dye couple was pre-blocked. The rational design, synthesis, characterization and proof-of-concept of this strategy were described in detail. The drug-release upon reducing environment can be translated into near-infrared (NIR) fluorescence signal (OFF-to-ON), allowing to track the drug-release procedure by multi-modal images including IVIS, FLECT and photoacoustic imaging. The versatile nanotheranostics system can target to triple negative breast tumor via conjugated F3 peptide, and show an improved anti-tumor efficacy with much lower side effect. The intelligent nanotheranostics system based on molecular shuttle provides new reference for precision medicine in preclinical trial and postclinical evaluation.

About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Sun, T; Zhang, GP; Wang, QB; Guo, ZY; Chen, QJ; Chen, XL; Lu, YF; Zhang, Y; Zhang, YJ; Guo, Q; Gao, X; Cheng, YZ; Jiang, C or concate me.. Computed Properties of C4H14Cl2N2S2

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

An article Aldehyde-mediated bioconjugation via in situ generated ylides WOS:000502103100008 published article about NEUTRAL PH; PROTEINS; TYROSINE; PEPTIDOGLYCAN; HYDRAZONES; STABILITY; LIGATION; REAGENTS; PEPTIDE in [Parmar, Sangeeta; Pawar, Sharad P.; Iyer, Ramkumar; Kalia, Dimpy] IISER Bhopal, Dept Chem, Bhopal Bypass Rd, Bhopal 462066, Madhya Pradesh, India in 2019.0, Cited 51.0. Quality Control of 2,2′-Disulfanediyldiethanamine dihydrochloride. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7

A technically simple approach for rapid, high-yielding and site-selective bioconjugation has been developed for both in vitro and cellular applications. This method involves the generation of maleimido-phosphonium ylides via 4-nitrophenol catalysis under physiological conditions followed by their Wittig reactions with aldehyde-appended biomolecules.

Quality Control of 2,2′-Disulfanediyldiethanamine dihydrochloride. About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Parmar, S; Pawar, SP; Iyer, R; Kalia, D or concate me.

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

An article Fabrication of Polymer Micelles with Zwitterionic Shell and Biodegradable Core for Reductively Responsive Release of Doxorubicin WOS:000473819100091 published article about BLOCK-COPOLYMERS; GRAFT COPOLYMER; NANOPARTICLES; NANOCARRIERS; DELIVERY; THERAPY; PROGRESS; DESIGN in [Jiang, Junting; Li, Junbo; Zhou, Biyu; Niu, Chaohuang; Wang, Wendi; Liang, Ju] Henan Univ Sci & Technol, Sch Chem Engn & Pharmaceut, 263 Kaiyuan Rd, Luoyang 471023, Peoples R China; [Wu, Wenlan] Henan Univ Sci & Technol, Sch Med, 263 Kaiyuan Rd, Luoyang 471023, Peoples R China in 2019.0, Cited 44.0. Computed Properties of C4H14Cl2N2S2. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7

To achieve a high stability in physiological environment and rapid intracellular drug release, a biodegradable zwitterionic triblock copolymer with a disulfide-linked poly-epsilon-caprolactone and polycarboxybetaine methacrylate (PCBMA-SS-PCL-SS-PCBMA) was prepared for micellar carrier to delivery doxorubicin (DOX) into tumor cells. PCBMA-SS-PCL-SS-PCBMA was obtained by following steps: i) introducing disulfide bonds through end-group modification of PCL diol with cystamine dihydrochloride; ii) preparing PCL-RAFT macromolecular chain transfer agent by EDC/NHS chemistry; iii) RAFT polymerization of zwitterionic monomer. Self-assembling from PCBMA-SS-PCL-SS-PCBMA, polymeric micelles had many advantages, such as ultra-low protein absorption in serum and obvious reduction-responsiveness in the presence of DTT. Furthermore, DOX-loaded micelles exhibited high stability upon centrifugation and lyophilization, a fast intracellular drug release and enhanced drug efficacy due to GSH-triggered PCBMA shell shedding and micellar reassembling. Thus, the polymeric micelles integrated several functions and properties could be prospectively utilized as valuable nanocarriers in cancer chemotherapeutics.

Computed Properties of C4H14Cl2N2S2. About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Jiang, JT; Li, JB; Zhou, BY; Niu, CH; Wang, WD; Wu, WL; Liang, J or concate me.

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

An article A comparative study on solubility improvement of tetracycline and dexamethasone by poly(propylene imine) and polyamidoamine dendrimers: An insight into cytotoxicity and cell proliferation WOS:000496338500001 published article about POLY(AMIDOAMINE)-FUNCTIONALIZED GRAPHENE OXIDE; PAMAM DENDRIMERS; DRUG CARRIERS; GENE DELIVERY; IN-VITRO; NANOPARTICLES; NANOCARRIERS; REDUCTION; BIOAVAILABILITY; ENCAPSULATION in [Najafi, Faezeh; Salami-Kalajahi, Mehdi; Roghani-Mamaqani, Hossein] Sahand Univ Technol, Fac Polymer Engn, POB 51335-1996, Tabriz, Iran; [Najafi, Faezeh; Salami-Kalajahi, Mehdi; Roghani-Mamaqani, Hossein] Sahand Univ Technol, Inst Polymer Mat, Tabriz, Iran; [Kahaie-Khosrowshahi, Amir] Sahand Univ Technol, Fac Chem Engn, Tabriz, Iran; [Kahaie-Khosrowshahi, Amir] Sahand Univ Technol, Tissue Engn & Stem Cells Res Ctr, Tabriz, Iran; [Kahaie-Khosrowshahi, Amir] Azarbaijan Shahid Madani Univ, Fac Engn, Tissue Engn & Stem Cells Res Ctr, Tabriz, Iran in 2020.0, Cited 74.0. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7. Formula: C4H14Cl2N2S2

Many of new chemical discovered in pharmaceutical industry are hydrophobic compounds. Various techniques have been used to overcome solubility problems of hydrophobic drugs in aqueous media. In the meantime, dendrimers have been considered for sustainability, nanoscale size, high carry capacity, tunable terminal functional groups in terms of drug delivery and solubility. In this work, we have synthesized poly(propylene imine) (PPI) dendrimer up to fifth generation using reduction of nitrile groups after Michael addition and also, polyamidoamine (PAMAM) dendrimer up to fourth generation using Michael addition and amidation reactions. fourth and fifth generations of PPI dendrimer and fourth and third generations of PAMAM dendrimer in different concentrations were used to evaluate the solubility of two hydrophobic drugs (tetracycline and dexamethasone). Furthermore, cytotoxicity of dendrimers and dendrimers/drugs hybrids was studied. The results showed that with increasing concentrations and also the generation of dendrimers, the solubility of these two hydrophobic drugs was increased. Cytotoxicity study through MTT assay against Osteoblast-like cell line (MG-63 cells) showed that dendrimers were relatively cytotoxic where adding dexamethasone caused higher cytotoxicity. However, tetracycline showed no significant effect on cytotoxicity whereas prevented cell proliferation.

Formula: C4H14Cl2N2S2. About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Najafi, F; Salami-Kalajahi, M; Roghani-Mamaqani, H; Kahaie-Khosrowshahi, A or concate me.

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

Sui, BL; Cheng, C; Wang, MM; Hopkins, E; Xu, PS in [Sui, Binglin; Cheng, Chen; Wang, Mingming; Hopkins, Elijah; Xu, Peisheng] Univ South Carolina, Dept Discovery & Biomed Sci, Coll Pharm, 715 Sumter, Columbia, SC 29208 USA published Heterotargeted Nanococktail with Traceless Linkers for Eradicating Cancer in 2019.0, Cited 40.0. Product Details of 56-17-7. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7.

Clinical application of drug cocktails for cancer therapy is limited by their severe systemic toxicity. To solve a catch-22 dilemma between safety and efficacy for drug cocktails, a heterotargeted nanococktail (PPPDMA) with traceless linkers is developed. In the PPPDMA nanogel, a heterotargeting strategy is employed to improve its tumor selective targeting efficacy by overcoming the cancer cell monoligand density limitation. Benefitting from its glutathione and reactive oxygen species responsiveness, the loaded paclitaxel and doxorubicin can be quickly and tracelessly released into the cytoplasm in their original form, which bestows upon PPPDMA nanogels the capability to overwhelm the processing capacity of the cancer cell’s P-glycoprotein efflux pump, and ultimately kill them without inducing side effects. The PPPDMA treatment reduced its tumor burden over 99% (in tumor weight) and 96% (in tumor number). Most importantly, no detectable tumor in more than half of the PPPDMA treated mice was observed. It is concluded that traceless linker and heterotargeted nanococktail strategy can be a safe and effective approach for cancer treatment.

About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Sui, BL; Cheng, C; Wang, MM; Hopkins, E; Xu, PS or concate me.. Product Details of 56-17-7

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

Zou, H; Wu, QL; Li, QW; Wang, CY; Zhou, L; Hou, XH; Yuan, WZ in [Zou, Hui; Wu, Qiliang; Li, Qianwei; Zhou, Li; Hou, Xiao-Hua] Hefei Univ Technol, Sch Chem & Chem Engn, Dept Polymer Sci & Engn, Hefei 230009, Anhui, Peoples R China; [Zou, Hui; Wu, Qiliang; Li, Qianwei; Zhou, Li; Hou, Xiao-Hua] Hefei Univ Technol, Anhui Key Lab Adv Catalyt Mat & React Engn, Hefei 230009, Anhui, Peoples R China; [Wang, Chunyao; Yuan, Weizhong] Tongji Univ, Sch Mat Sci & Engn, Shanghai 201804, Peoples R China published Thermo- and redox-responsive dumbbell-shaped copolymers: from structure design to the LCST-UCST transition in 2020.0, Cited 64.0. HPLC of Formula: C4H14Cl2N2S2. The Name is 2,2′-Disulfanediyldiethanamine dihydrochloride. Through research, I have a further understanding and discovery of 56-17-7.

A dumbbell-shaped copolymer (PDMAEMA)(4)-PCL-SS-PCL-(PDMAEMA)(4) with a lower critical solution temperature (LCST) and redox responses was first synthesized by the combination of ring opening polymerization (ROP), click chemistry and atom transfer radical polymerization (ATRP). Then a dumbbell-shaped copolymer (PDMAPS)(4)-PCL-SS-PCL-(PDMAPS)(4) with an upper critical solution temperature (UCST) and redox responses was obtained through the quaternization reaction between DMAEMA and excess 1,3-propane sultone. Both (PDMAEMA)(4)-PCL-SS-PCL-(PDMAEMA)(4) and (PDMAPS)(4)-PCL-SS-PCL-(PDMAPS)(4) were amphiphilic, and they could self-assemble into spherical micelles under certain conditions. Benefitting from the LCST-type thermoresponse of PDMAEMA and UCST-type thermoresponse of PDMAPS, both dumbbell-shaped copolymers (PDMAEMA)(4)-PCL-SS-PCL-(PDMAEMA)(4) and (PDMAPS)(4)-PCL-SS-PCL-(PDMAPS)(4) presented temperature-responsive properties. The morphology and size of their assemblies would be changed when the temperature is altered. Meanwhile, due to the redox-response of disulfide bonds, both (PDMAEMA)(4)-PCL-SS-PCL-(PDMAEMA)(4) and (PDMAPS)(4)-PCL-SS-PCL-(PDMAPS)(4) showed redox-responsive properties. When dl-dithiothreitol (DTT) was added into the systems, disulfide bonds were broken, causing the change of (PDMAEMA)(4)-PCL-SS-PCL-(PDMAEMA)(4) to PCL-(PDMAEMA)(4), while (PDMAPS)(4)-PCL-SS-PCL-(PDMAPS)(4) changed into PCL-(PDMAPS)(4). The distributions of R-h for both (PDMAEMA)(4)-PCL-SS-PCL-(PDMAEMA)(4) and (PDMAPS)(4)-PCL-SS-PCL-(PDMAPS)(4) assemblies broadened with asymmetric peaks, giving rise to curves with double peaks. After 24 h, DLS curves became symmetric with a single peak, and the R-h was about half that of the original assemblies. In the meantime, dispersed spherical micelles could be observed by TEM.

HPLC of Formula: C4H14Cl2N2S2. About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Zou, H; Wu, QL; Li, QW; Wang, CY; Zhou, L; Hou, XH; Yuan, WZ or concate me.

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem

Application In Synthesis of 2,2′-Disulfanediyldiethanamine dihydrochloride. I found the field of Chemistry very interesting. Saw the article Sulfur substitution in a Ni(cyclam) derivative results in lower overpotential for CO2 reduction and enhanced proton reduction published in 2019.0, Reprint Addresses Apfel, UP (corresponding author), Ruhr Univ Bochum, Anorgan Chem 1, Univ Str 150, D-44801 Bochum, Germany.; Ray, K (corresponding author), Humboldt Univ, Inst Chem, Brook Taylor Str 2, D-12489 Berlin, Germany.; Apfel, UP (corresponding author), Fraunhofer UMSICHT, Osterfelder Str 3, D-46047 Oberhausen, Germany.. The CAS is 56-17-7. Through research, I have a further understanding and discovery of 2,2′-Disulfanediyldiethanamine dihydrochloride.

The replacement of the opposing nitrogen atoms in 1,4,8,11-tetraazacyclotetradecane (cyclam) with two sulfur atoms in 1,8-dithia-4,11-diazacyclotetradecane (dithiacyclam) enables the electrochemical reduction of protons and CO(2)via the corresponding nickel(ii) complex at more positive potentials. In addition, a 10-fold enhancement in the proton reduction rate of [Ni(dithiacyclam)](2+) relative to [Ni(cylcam)](2+) was observed. The study provides vital insight into Nature’s choice of employing predominantly sulfur based ligand platforms in achieving biological proton and CO2 reductions.

Application In Synthesis of 2,2′-Disulfanediyldiethanamine dihydrochloride. About 2,2′-Disulfanediyldiethanamine dihydrochloride, If you have any questions, you can contact Gerschel, P; Warm, K; Farquhar, ER; Englert, U; Reback, ML; Siegmund, D; Ray, K; Apfel, UP or concate me.

Reference:
Thiazine – an overview | ScienceDirect Topics,
,Thiazine | C4H5NS – PubChem