404909-88-2

Upstream product

• 404909-83-7 2-((S)-1-{(S)-2-[(2S,3S)-2-((2S,3S)-2-tert-Butoxycarbonylamino-3-methyl-pentanoylamino)-3-hydroxy-butyrylamino]-3-phenyl-propionyl}-pyrrolidin-2-yl)-thiazole-4-carboxylic acid ethyl ester 
• 404909-87-1 2-((S)-1-{(S)-2-[(2S,3S)-2-(9H-Fluoren-9-ylmethoxycarbonylamino)-3-hydroxy-butyrylamino]-3-phenyl-propionyl}-pyrrolidin-2-yl)-thiazole-4-carboxylic acid ethyl ester 
• 404909-84-8 2-(1-{2-[2-(2-{[1-(2-tert-butoxycarbonylamino-3-phenyl-propionyl)-pyrrolidine-2-carbonyl]-amino}-3-methyl-pentanoylamino)-3-hydroxy-butyrylamino]-3-phenyl-propionyl}-pyrrolidin-2-yl)-thiazole-4-carboxylic acid ethyl ester 
• 347191-28-0 2-(1-{2-[2-(2-{[1-(2-tert-butoxycarbonylamino-3-phenyl-propionyl)-pyrrolidine-2-carbonyl]-amino}-3-methyl-pentanoylamino)-3-hydroxy-butyrylamino]-3-phenyl-propionyl}-pyrrolidin-2-yl)-thiazole-4-carboxylic acid methyl ester 
• 347191-29-1 Boc-(S)-Ile-(S)-aThr-(S)-Phe-(S)-Pro-Thz-OMe 
• 347191-37-1 Boc-L-aThr-L-Phe-L-Pro-Thz-OMe 
• 347191-35-9 methyl 2-{(S)-1-[(S)-2-tert-butoxycarbonylamino-3-phenylpropanoyl]pyrrolidin-2-yl}-thiazole-4-carboxylate 
• 662723-01-5 L-Phe-L-Pro-Thz-OMe 
• 347191-33-7 Boc-L-Pro-Thz-OMe 
• 347191-31-5 (2S)-2-(1-tert-butoxycarbonylpyrrolidin-2-yl)-thiazolidine-4-carboxylic acid methyl ester 
• 442682-26-0 (S)-2-Pyrrolidin-2-yl-thiazole-4-carboxylic acid methyl ester 
• 38017-89-9 t-butyloxycarbonyl-L-phenylalanyl-L-proline methyl ester 
• 115186-37-3 tert-butyl (2S)-2-{[N-methoxy(N-methyl)amino]carbonyl}pyrrolidine-1-carboxylate 
• 23420-32-8 N-tert-butoxycarbonyl-L-phenylalanyl-L-proline 

Downstream Products

• 347191-27-9 cyclo(-(S)-Phe-(S)-Pro-(S)-Ile-(S)-aThr-(S)-Phe-(S)-Pro-Thz-) 
• 259794-28-0 cis,cis-Ceratospongamide 

Relevant academic research and scientific papers

Kinetic control of proline amide rotamers: Total synthesis of trans,trans- and cis,cis-ceratospongamide

Ceratospongamide is a cyclic peptide natural product that is biosynthesized as a mixture of two proline rotamers. Remarkably, these rotamers do not detectably interconvert at temperatures up to 100 °C. Here we report high-yielding syntheses of each rotame

Total synthesis of cis,cis-ceratospongamide, a bioactive thiazole-containing cyclic peptide from marine origin

The first total synthesis of cis,cis-ceratospongamide (1a), isolated from marine source, was accomplished via thiazole synthesis using CMD methodology, DEPC-mediated peptide coupling, macrolactamization, and cyclodehydration. Comparison of the cyclization sites and coupling reagents in the macrolactamization step was also investigated.