Our Advantages: 1. A strong scientific research team (40people in the research team, including 7 Doctors, 13Masters...). 2. Stable quality (with a complete scientific research center and testing center to ensure the quality stability of each batch o
Cas:63958-90-7
Min.Order:1 box
FOB Price: $26.0 / 30.0
Type:Trading Company
inquiryGood day! I am May Zhang from Hebei Muhuang Technology Co., Ltd. We can provide you with chemical raw materials, chemical products, pharmaceutical intermediates, veterinary intermediates, dye intermediates, pigments, cosmetic raw materials and chem
Cas:63958-90-7
Min.Order:1 Gram
FOB Price: $1.0
Type:Trading Company
inquiryQuick Details Classification: Pharmaceutical Intermediates Refractive index:1.575 Cas NO.:63958-90-7 Flash Point: 957.1 oC Name: SERUM THYMIC FACTOR Purity: 99% Molecular Formula:C33H54N12O15 usage: treatment of diseases caused by immune d
Cas:63958-90-7
Min.Order:10 Milligram
FOB Price: $110.0
Type:Trading Company
inquiryOur advantages: 1, High quality with competitive price: 1) Standard:BP/USP/EP/Enterprise standard 2) All Purity≥99% 3) We are manufacturer and can provide high quality products with factory price. 2, Fast and safe delivery 1) Parcel can be
Cas:63958-90-7
Min.Order:1 Gram
FOB Price: $1.0
Type:Trading Company
inquiryWe can provide GMP validation service that complies with SFDA, FDA, WHO and EU EMPA.Excellent registration team could help us easlily to register our products in different countries.If you and your customer are interested in some products or need C
Cas:63958-90-7
Min.Order:1 Gram
Negotiable
Type:Manufacturers
inquiry1. Factory price and high quality must be guaranteed, base on 8 years of production and R&D experience2. Free samples will be provided,ensure specifications and quality are right for customer3. Customers will receive the most professional technical s
Cas:63958-90-7
Min.Order:1 Gram
FOB Price: $0.1
Type:Manufacturers
inquiryShanghai Seasonsgreen Chemical is a high-tech research and development, production, sale and custom synthesis set in one high-tech chemical products enterprises. Our sales and marketing division is located in Shanghai, serving international pharmaceu
Cas:63958-90-7
Min.Order:1 Kilogram
FOB Price: $1.0
Type:Manufacturers
inquiryName:ThymulinAcetate English Name:ThymulinAcetate English Alias:Thymic serum factor Nonathymulin CAS No.63958-90-7 Molecular formula:C33H54N12O15 Molecular weight:858.85 Packaging Specification: 25kg/drum high purity 99%min stock Hu
Cas:63958-90-7
Min.Order:25 Kilogram
FOB Price: $1.0 / 2.0
Type:Other
inquiryG'onadorelin is a hormone that is created naturally by the hypothalamus in the brain. It is also known as gonadotrophin-releasing hormone or GnRH.G'onadorelin.G'onadorelin stimulates the pituitary gland in the brain to release the sex hor
Cas:63958-90-7
Min.Order:1 Kilogram
FOB Price: $20.0 / 40.0
Type:Trading Company
inquiryWITH US,YOUR MONEY IN SAFE,YOUR BUSINESS IN SAFE 1)Quick Response Within 12 hours; 2)Quality Guarantee: All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France et
Cas:63958-90-7
Min.Order:1 Kilogram
FOB Price: $139.0 / 210.0
Type:Trading Company
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 ♦ W
Cas:63958-90-7
Min.Order:1 Kilogram
FOB Price: $5.0 / 10.0
Type:Trading Company
inquiryOur Advantage: high quality with competitive price High quality standard: BP/USP/EP Enterprise standard All purity customized Fast and safe delivery We have reliable forwarder who can help us deliver our goods more fast and safe. We
Cas:63958-90-7
Min.Order:10 Kilogram
Negotiable
Type:Trading Company
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 email in time prod
1.No Less 8 years exporting experience. Clients can 100% received goods 2.Lower Price with higher quality 3,Free sample 4,We are sincerely responsible for the "product quality" and "After Service" Upbio is Specialized
Cas:63958-90-7
Min.Order:1 Kilogram
Negotiable
Type:Lab/Research institutions
inquiryBeluga chemical professional supply High quality Thymalin/ Thymic Factor trifluoroacetate salt manufacturer 1. Beluga Chemical has a professional RESEARCH and development team and strong technical force to ensure technical support and research cap
Cas:63958-90-7
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryOur advantages: Advantage 1, we have overseas warehouse in the local country Products can be shipped to you from overseas warehouse. 3-4 days safe delivery. Or you can go to the warehouse and pick it up. (This can be selected according to the produc
Cas:63958-90-7
Min.Order:1 Kilogram
FOB Price: $30.0 / 50.0
Type:Trading Company
inquiry1.high quality: quality is life. quality is the most important element for all goods. we have a lab doing research in wuhan china. hplc and nmr is available if needed. 2.reasonable price: we provide high quality products with competi
Cas:63958-90-7
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiry1. Timely and efficient service to ensure communication with customers 2. Produce products of different specifications and sizes according to your requirements. 3. Quality procedures and standards recognized by SGS. Advanced plant equipment ensures
Cas:63958-90-7
Min.Order:1 Kilogram
FOB Price: $10.0 / 20.0
Type:Lab/Research institutions
inquiryThymulin manufacturer CAS: 63958-90-7 Specification Chemical Name SERUM THYMIC FACTOR Synonyms STF,SeruM ThyMic Factor,ThyMulin;THYMIC FACTOR;STF;Pyr-Ala-Lys-Ser-Gln-Gly-Gly-Ser-Asn-OH;pyro-Glu-Ala-Lys-Ser-Gln-Gly-Gly-
Cas:63958-90-7
Min.Order:1 Kilogram
Negotiable
Type:Other
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
Our Advantage 1. Rich experience We specialize in this filed for many years, our APIs exported to all over the world and and we established long friendly relations of cooperation with our clients. 2. Great quality,purity and favorable Good qual
Cas:63958-90-7
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquiryXi'an Yinherb Bio-Tech Co., Ltd was founded in 2009, We have more than 10 experienced doctors and scientists and professional managers, specializing in Nootropics, Sarms and Peptides researching and developing, and become the lead
Cas:63958-90-7
Min.Order:1 Gram
Negotiable
Type:Lab/Research institutions
inquiryNote:Due to policy changes, some products have not been disclosed on here. However, you can still ask us for quotations please leave me a message。 If you couldn't find the product you want in our store, maybe we haven't uploaded the co
Cas:63958-90-7
Min.Order:1 box
FOB Price: $20.0 / 50.0
Type:Trading Company
inquiryHangzhou KeyingChem Co., Ltd. exported this product to many countries and regions at best price. If you are looking for the material’s manufacturer or supplier in China, KeyingChem is your best choice. Pls contact with us freely for getting det
Packing: According to customer requirements Delivery time: In stock or depands Port of shipment: Ningbo/Shanghai/Qingdao OEM/ODM:Welcome Sample:We can offer our existing samples at once Transportation:Express/Sea/Air Port:Ningbo/Shanghai/Qingd
Vapor Pressure:0mmHg at 25°C Refractive Index:1.575 Boiling Point:1658.9 °C at 760 mmHg PKA:3.08±0.10(Predicted) Flash Point:957.1 °C PSA:451.86000 Density:1.417 g/cm3 LogP:-3.67790 Storage Temp.:−20°C
Cas:63958-90-7
Min.Order:1 Gram
FOB Price: $2.0 / 5.0
Type:Trading Company
inquiryIn stock: Top-sell products are always in stock. High Purity: More than 99% Strong research team Quality :High quality Packing method: bagged, boxed, bottled,barreled (customer needs packing methods) Customer Service: If you need us to provide samp
Cas:63958-90-7
Min.Order:1 Gram
Negotiable
Type:Trading Company
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
Our company was built in 2009 with an ISO certificate.In the past 6 years, we have grown up as a famous fine chemicals supplier in China and we had established stable business relationships with Samsung,LG,Merck,Thermo Fisher Scientific and so
Cas:63958-90-7
Min.Order:1 Metric Ton
FOB Price: $5000.0
Type:Lab/Research institutions
inquiryProduct name: Thymulin Acetate CAS No.: 63958-90-7 Molecule Formula:C33H54N12O15 Molecule Weight:8585.85 Purity: 98.0% Package: 1g/bag Description:White powder Manufacture Standards:Enterprise Standard TESTING ITEM
Cas:63958-90-7
Min.Order:1 Kilogram
Negotiable
Type:Trading Company
inquirypyroglutamyl-alanyl-Nε-benzyloxycarbonyllysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine 4-nitrobenzyl ester
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
With hydrogen; palladium In water; acetic acid for 12h; Ambient temperature; | 84% |
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
With hydrogen; palladium on activated charcoal In acetic acid for 24h; | 52% |
Nα-tert-butyloxycarbonyl-Nε-benzyloxycarbonyllysine dicyclohexylammonium salt
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 94 percent / HOBT, WSCl, NMM / tetrahydrofuran / 16 h / 4 °C 2: 1.) TFA, anisole 2.) HOBT, WSCl, NMM / 1.) room temperature, 20 min 2.) DMF, 4 deg C, overnight 3: 1.) TFA, anisole 2.) NMM, HOBT, WSCl / 1.) room temperature, 20 min 2.) DMF, 0 deg C, overnight, 4 deg C 4: 94 percent / hydrazine hydrate / dimethylformamide; methanol / 48 h / Ambient temperature 6: 52 percent / H2 / 10 percent Pd/C / aq. acetic acid / 24 h View Scheme |
tert.-butyloxycarbonylalanyl-Nε-benzyloxycarbonyllysyl-serine methyl ester
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 1.) TFA, anisole 2.) NMM, HOBT, WSCl / 1.) room temperature, 20 min 2.) DMF, 0 deg C, overnight, 4 deg C 2: 94 percent / hydrazine hydrate / dimethylformamide; methanol / 48 h / Ambient temperature 4: 52 percent / H2 / 10 percent Pd/C / aq. acetic acid / 24 h View Scheme | |
Multi-step reaction with 5 steps 1: 88 percent / NaOH / methanol; H2O / 0.5 h / Ambient temperature 2: 1) triethylamine, 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, room temperature, 8 h 3: 93 percent / hydrogen chloride / acetic acid; H2O / 0.75 h / Ambient temperature 4: 1) 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide 2) N-ethylpiperidine / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, then room temperature, 8 h 5: 84 percent / H2 / Pd-black / acetic acid; H2O / 12 h / Ambient temperature View Scheme |
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 1.) TFA, anisole 2.) HOBT, WSCl, NMM / 1.) room temperature, 20 min 2.) DMF, 4 deg C, overnight 2: 1.) TFA, anisole 2.) NMM / 1.) room temperature, 20 min 2.) DMF, room temperature, 18 h. 4: 52 percent / H2 / 10 percent Pd/C / aq. acetic acid / 24 h View Scheme |
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 1.) TFA, anisole 2.) NMM / 1.) room temperature, 20 min 2.) DMF, room temperature, 18 h. 3: 52 percent / H2 / 10 percent Pd/C / aq. acetic acid / 24 h View Scheme |
Z-Pyr-Ala-Lys(Z)-Ser-OMe
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 94 percent / hydrazine hydrate / dimethylformamide; methanol / 48 h / Ambient temperature 3: 52 percent / H2 / 10 percent Pd/C / aq. acetic acid / 24 h View Scheme |
Z-Pyr-Ala-Lys(Z)-Ser-NHNH2
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 2: 52 percent / H2 / 10 percent Pd/C / aq. acetic acid / 24 h View Scheme |
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 2: 52 percent / H2 / 10 percent Pd/C / aq. acetic acid / 24 h View Scheme |
Boc-Lys(Z)-Ser-OMe
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 1.) TFA, anisole 2.) HOBT, WSCl, NMM / 1.) room temperature, 20 min 2.) DMF, 4 deg C, overnight 2: 1.) TFA, anisole 2.) NMM, HOBT, WSCl / 1.) room temperature, 20 min 2.) DMF, 0 deg C, overnight, 4 deg C 3: 94 percent / hydrazine hydrate / dimethylformamide; methanol / 48 h / Ambient temperature 5: 52 percent / H2 / 10 percent Pd/C / aq. acetic acid / 24 h View Scheme |
alanyl-Nε-benzyloxycarbonyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine 4-nitrobenzyl ester hydrochloride
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 2 steps 1: 1) 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide 2) N-ethylpiperidine / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, then room temperature, 8 h 2: 84 percent / H2 / Pd-black / acetic acid; H2O / 12 h / Ambient temperature View Scheme |
benzyloxycarbonylseryl-asparagine 4-nitrobenzyl ester
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 9 steps 1: 95 percent / hydrogen bromide / acetic acid / 1 h / Ambient temperature 2: 40 percent / triethylamine, N,N'-dicyclohexylcarbodiimide / dimethylformamide / 1) O deg C, 2 h, 2) room temperature, 8 h 3: 96 percent / hydrochloric acid / acetic acid; H2O / 1 h / Ambient temperature 4: 1) N-ethylpiperidine, ethyl chloroformate / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 30 min, then room temperature, 2h 5: 90 percent / hydrogen bromide / acetic acid / 1 h / Ambient temperature 6: 1) triethylamine, 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, room temperature, 8 h 7: 93 percent / hydrogen chloride / acetic acid; H2O / 0.75 h / Ambient temperature 8: 1) 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide 2) N-ethylpiperidine / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, then room temperature, 8 h 9: 84 percent / H2 / Pd-black / acetic acid; H2O / 12 h / Ambient temperature View Scheme |
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: 80 percent / HCl / acetic acid; methanol / 0.75 h / Ambient temperature 2: 91 percent / N-ethylpiperidine / dimethylformamide / 12 h / Ambient temperature 3: 88 percent / NaOH / methanol; H2O / 0.5 h / Ambient temperature 4: 1) triethylamine, 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, room temperature, 8 h 5: 93 percent / hydrogen chloride / acetic acid; H2O / 0.75 h / Ambient temperature 6: 1) 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide 2) N-ethylpiperidine / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, then room temperature, 8 h 7: 84 percent / H2 / Pd-black / acetic acid; H2O / 12 h / Ambient temperature View Scheme |
seryl-asparagine 4-nitrobenzyl ester hydrobromide
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1: 40 percent / triethylamine, N,N'-dicyclohexylcarbodiimide / dimethylformamide / 1) O deg C, 2 h, 2) room temperature, 8 h 2: 96 percent / hydrochloric acid / acetic acid; H2O / 1 h / Ambient temperature 3: 1) N-ethylpiperidine, ethyl chloroformate / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 30 min, then room temperature, 2h 4: 90 percent / hydrogen bromide / acetic acid / 1 h / Ambient temperature 5: 1) triethylamine, 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, room temperature, 8 h 6: 93 percent / hydrogen chloride / acetic acid; H2O / 0.75 h / Ambient temperature 7: 1) 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide 2) N-ethylpiperidine / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, then room temperature, 8 h 8: 84 percent / H2 / Pd-black / acetic acid; H2O / 12 h / Ambient temperature View Scheme |
Nε-benzyloxycarbonyllysyl-serine methyl ester hydrochloride
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 91 percent / N-ethylpiperidine / dimethylformamide / 12 h / Ambient temperature 2: 88 percent / NaOH / methanol; H2O / 0.5 h / Ambient temperature 3: 1) triethylamine, 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, room temperature, 8 h 4: 93 percent / hydrogen chloride / acetic acid; H2O / 0.75 h / Ambient temperature 5: 1) 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide 2) N-ethylpiperidine / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, then room temperature, 8 h 6: 84 percent / H2 / Pd-black / acetic acid; H2O / 12 h / Ambient temperature View Scheme |
tert.-butyloxycarbonylglycyl-glycyl-seryl-asparagine 4-nitrobenzyl ester
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 7 steps 1: 96 percent / hydrochloric acid / acetic acid; H2O / 1 h / Ambient temperature 2: 1) N-ethylpiperidine, ethyl chloroformate / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 30 min, then room temperature, 2h 3: 90 percent / hydrogen bromide / acetic acid / 1 h / Ambient temperature 4: 1) triethylamine, 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, room temperature, 8 h 5: 93 percent / hydrogen chloride / acetic acid; H2O / 0.75 h / Ambient temperature 6: 1) 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide 2) N-ethylpiperidine / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, then room temperature, 8 h 7: 84 percent / H2 / Pd-black / acetic acid; H2O / 12 h / Ambient temperature View Scheme |
glutaminyl-glycyl-glycyl-seryl-asparagine 4-nitrobenzyl ester hydrobromide
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 1) triethylamine, 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, room temperature, 8 h 2: 93 percent / hydrogen chloride / acetic acid; H2O / 0.75 h / Ambient temperature 3: 1) 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide 2) N-ethylpiperidine / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, then room temperature, 8 h 4: 84 percent / H2 / Pd-black / acetic acid; H2O / 12 h / Ambient temperature View Scheme |
glycyl-glycyl-seryl-asparagine 4-nitrobenzyl ester hydrochloride
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 6 steps 1: 1) N-ethylpiperidine, ethyl chloroformate / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 30 min, then room temperature, 2h 2: 90 percent / hydrogen bromide / acetic acid / 1 h / Ambient temperature 3: 1) triethylamine, 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, room temperature, 8 h 4: 93 percent / hydrogen chloride / acetic acid; H2O / 0.75 h / Ambient temperature 5: 1) 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide 2) N-ethylpiperidine / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, then room temperature, 8 h 6: 84 percent / H2 / Pd-black / acetic acid; H2O / 12 h / Ambient temperature View Scheme |
benzyloxycarbonylglutaminyl-glycyl-glycyl-seryl-asparagine 4-nitrobenzyl ester
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 5 steps 1: 90 percent / hydrogen bromide / acetic acid / 1 h / Ambient temperature 2: 1) triethylamine, 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, room temperature, 8 h 3: 93 percent / hydrogen chloride / acetic acid; H2O / 0.75 h / Ambient temperature 4: 1) 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide 2) N-ethylpiperidine / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, then room temperature, 8 h 5: 84 percent / H2 / Pd-black / acetic acid; H2O / 12 h / Ambient temperature View Scheme |
Nα-2-nitrobenzenesulfenyl-Nε-benzyloxycarbonyllysine dicyclohexylammonium salt
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 8 steps 1: 95 percent / N,N'-dicyclohexylcarbodiimide / dimethylformamide / 3 h / Ambient temperature 2: 80 percent / HCl / acetic acid; methanol / 0.75 h / Ambient temperature 3: 91 percent / N-ethylpiperidine / dimethylformamide / 12 h / Ambient temperature 4: 88 percent / NaOH / methanol; H2O / 0.5 h / Ambient temperature 5: 1) triethylamine, 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, room temperature, 8 h 6: 93 percent / hydrogen chloride / acetic acid; H2O / 0.75 h / Ambient temperature 7: 1) 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide 2) N-ethylpiperidine / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, then room temperature, 8 h 8: 84 percent / H2 / Pd-black / acetic acid; H2O / 12 h / Ambient temperature View Scheme |
tert.-butyloxycarbonylalanyl-Nε-benzyloxycarbonyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine 4-nitrobenzyl ester
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 3 steps 1: 93 percent / hydrogen chloride / acetic acid; H2O / 0.75 h / Ambient temperature 2: 1) 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide 2) N-ethylpiperidine / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, then room temperature, 8 h 3: 84 percent / H2 / Pd-black / acetic acid; H2O / 12 h / Ambient temperature View Scheme |
tert.-butyloxycarbonylalanyl-Nε-benzyloxycarbonyllysyl-serine
pyroglutamyl-alanyl-lysyl-seryl-glutaminyl-glycyl-glycyl-seryl-asparagine
Conditions | Yield |
---|---|
Multi-step reaction with 4 steps 1: 1) triethylamine, 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, room temperature, 8 h 2: 93 percent / hydrogen chloride / acetic acid; H2O / 0.75 h / Ambient temperature 3: 1) 1-hydroxybenztriazole, N,N'-dicyclohexylcarbodiimide 2) N-ethylpiperidine / 1) dimethylformamide, -10 deg C, 10 min, 2) 0 deg C, 2 h, then room temperature, 8 h 4: 84 percent / H2 / Pd-black / acetic acid; H2O / 12 h / Ambient temperature View Scheme |
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