As a leading manufacturer and supplier of chemicals in China, DayangChem not only supply popular chemicals, but also DayangChem's R&D center offer custom synthesis services. DayangChem can provide different quantities of custom synthesis ch
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inquiryTRANS-1-METHYL-4-CARBOXY-5-(3-PYRIDYL)-2-PYRROLIDINONE CAS:33224-01-0 Qingdao Belugas Import and Export Co., Ltd. is a scientific and technological company integrating research and development, production and trade of chemical intermediates, specia
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inquiryHello, dear friend! I'm Hansen and Allen from China. Welcome to my lookchem mall! The following is a brief introduction of our company's products and services. If you are interested in our products, please contact us by emai
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inquiryHenan Wentao Chemical Product Co.,Ltd is Located in Zhengzhou High-tech Development Zone with import and export license, We passed ISO 9001:2008 as well, Henan Wentao has developed more than 1000 compounds, which are widely used in the fields of prod
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inquiryQuick details of TRANS-1-METHYL-4-CARBOXY-5-(3-PYRIDYL)-2-PYRROLIDINONE powder Product name:TRANS-1-METHYL-4-CARBOXY-5-(3-PYRIDYL)-2-PYRROLIDINONE appearance: White to Almost white powder to crystal CAS.No: 33224-01-0 Molecular formula:C11H12N2O3 Mol
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inquiryZibo Hangyu Biotechnology Development Co., Ltd is a leading manufacturer and supplier of chemicals in China. We develop produce and distribute high quality pharmaceuticals, intermediates, special chemicals and OLED intermediates and other fine chemi
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inquiryfactory?direct?saleAppearance:White Powder Storage:Store In Dry, Cool And Ventilated Place Package:25kg/drum, also according to the clients requirement Application:It is widely used as a thickener, emulsifier and stabilizer Transportation:By Sea Or B
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inquiry1.Applied in food field.it can improve the immune system and prolong life. 2.Appliedin cosmetic field.it can improve the skin care. 3.Applied in pharmaceutical field.it can treat various dieases. 4.Our product quality assurance will make our customer
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inquiryWe are a Union of chemistry in China, consists of chemists,engineers, laboratories,factories in China. We organize surplus capacity of R&D and production as well as custom synthesis for chemical products and chemical business project. We are supp
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inquiry1, High quality with competitive price:2, Fast and safe delivery3.Excellent pre-sales and after-sales service4. Well-trained and professional technologist and sales with rich experience in the field for 5-10 yearsAppearance:see detailed specification
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inquiryLower price, sample is available,SDS test documents are available,large stock in warehouseAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:Fine chemical intermediates, used as the main raw material for the synthe
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inquiry1. Product advantages? High purity, all above 98.5%, no impurities after dissolution? We will test each batch to ensure quality? OEM and private brand services designed for free? Various cap colors available? We can also provide MT1 peptide powder2.
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inquiryAnsciep Chemical is a professional enterprise manufacturing and distributing fine chemicals and speciality chemicals. We have been dedicated to heterocycle compounds and phenyl rings for tens of years. This is our mature product for export. Our quali
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inquirybest price high quality Storage:Room Temperature Application:For pharmacy chemicals Transportation:by sea, air
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inquirytrans-4-Cotininecarboxylic acid Application:trans-4-Cotininecarboxylic acid
factory?direct?saleAppearance:White powder Storage:Sealed and preserved Package:200/Kilograms Application:healing drugs Transportation:By sea Port:Shanghai/tianjin
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inquirytrans-4-Cotininecarboxylic acidAppearance:white powder Storage:Shading, sealed, dry place. Package:aluminous bag Application:API Transportation:By express (Door to door) such as FEDEX, DHL, EMS for small amount. By air(airport to airport) or by sea L
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inquiryGood Quality Package:1kg/bag Application:Medical or chemical Transportation:Air/Train/Sea Port:Shenzhen
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inquiry1.Professional synthesis laboratory and production base. 2.Strong synthesis team and service team. 3.Professional data management system. 4.We provide the professional test date and product information ,ex. HNMR ,CNMR,FNMR, HPLC/G
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inquiryB
(2S,3S)-1-methyl-5-oxo-2-(pyridin-3-yl)pyrrolidine-3-carboxylic acid
Conditions | Yield |
---|---|
With ammonium formate In methanol at 20℃; Reagent/catalyst; Solvent; Resolution of racemate; |
2-(2-(2-(2-(2-(2-(2-(2-(2-(2-aminoethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethanamine
(2S,3S)-1-methyl-5-oxo-2-(pyridin-3-yl)pyrrolidine-3-carboxylic acid
Conditions | Yield |
---|---|
Stage #1: (2S,3S)-1-methyl-5-oxo-2-(pyridin-3-yl)pyrrolidine-3-carboxylic acid With O-(N-succinimidyl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; N-ethyl-N,N-diisopropylamine In dimethyl sulfoxide for 0.25h; Sonication; Stage #2: 2-(2-(2-(2-(2-(2-(2-(2-(2-(2-aminoethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethanamine In dimethyl sulfoxide for 0.25h; Sonication; | 28.9% |
diazomethane
(2S,3S)-1-methyl-5-oxo-2-(pyridin-3-yl)pyrrolidine-3-carboxylic acid
trans-4'-carboxycotinine methyl ester
Conditions | Yield |
---|---|
In acetone at 20℃; for 0.333333h; | 39 mg |
Fmoc-Val-OH
Fmoc-Tyr(tBu)-OH
Fmoc-Lys(tert-butoxycarbonyl)
N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-methionine
Nα-fluorenyl-9-methoxycarbonyl-D-Met
(2S,3S)-1-methyl-5-oxo-2-(pyridin-3-yl)pyrrolidine-3-carboxylic acid
3-[(S)-2-carboxy-2-(9H-fluoren-9-ylmethoxycarbonylamino)ethyl]indole-1-carboxylic acid tert-butyl ester
Conditions | Yield |
---|---|
Stage #1: Nα-fluorenyl-9-methoxycarbonyl-D-Met With 4-methyl-morpholine; benzotriazol-1-ol; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate In N,N-dimethyl-formamide at 20℃; for 2h; MBHA link amide resin; Automated synthesizer; Stage #2: With piperidine In N,N-dimethyl-formamide at 20℃; for 0.166667h; MBHA link amide resin; Automated synthesizer; Stage #3: Fmoc-Val-OH; C39H59NO15; Fmoc-Tyr(tBu)-OH; Fmoc-Lys(tert-butoxycarbonyl); N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-methionine; (2S,3S)-1-methyl-5-oxo-2-(pyridin-3-yl)pyrrolidine-3-carboxylic acid; 3-[(S)-2-carboxy-2-(9H-fluoren-9-ylmethoxycarbonylamino)ethyl]indole-1-carboxylic acid tert-butyl ester Further stages; |
Fmoc-D-Lys(BOC)-OH
Nα-fluorenyl-9-methoxycarbonyl-D-Met
N-(9-fluorenylmethoxycarbonyl)-D-valine
(2S,3S)-1-methyl-5-oxo-2-(pyridin-3-yl)pyrrolidine-3-carboxylic acid
Conditions | Yield |
---|---|
Stage #1: Nα-fluorenyl-9-methoxycarbonyl-D-Met With 4-methyl-morpholine; benzotriazol-1-ol; O-(1H-benzotriazol-1-yl)-N,N,N',N'-tetramethyluronium hexafluorophosphate In N,N-dimethyl-formamide at 20℃; for 2h; MBHA link amide resin; Automated synthesizer; Stage #2: With piperidine In N,N-dimethyl-formamide at 20℃; for 0.166667h; MBHA link amide resin; Automated synthesizer; Stage #3: C39H59NO15; Fmoc-D-Lys(BOC)-OH; Nα-fluorenyl-9-methoxycarbonyl-D-Met; N-(9-fluorenylmethoxycarbonyl)-D-valine; (2S,3S)-1-methyl-5-oxo-2-(pyridin-3-yl)pyrrolidine-3-carboxylic acid; Fmoc-D-Tyr(O-tBu)-OH; 1-tert-butoxycarbonyl-N-[(9-fluorenyl)methoxycarbonyl]-D-tryptophan Further stages; |
2-(2-(2-(2-(2-(2-(2-(2-(2-(2-aminoethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethoxy)ethanamine
(2S,3S)-1-methyl-5-oxo-2-(pyridin-3-yl)pyrrolidine-3-carboxylic acid
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1.1: N-ethyl-N,N-diisopropylamine; O-(N-succinimidyl)-N,N,N',N'-tetramethyluronium tetrafluoroborate / dimethyl sulfoxide / 0.25 h / Sonication 1.2: 0.25 h / Sonication 2.1: O-(N-succinimidyl)-N,N,N',N'-tetramethyluronium tetrafluoroborate; triethylamine / dimethyl sulfoxide / 0.5 h / Sonication 2.2: 0.5 h / Sonication View Scheme |
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