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Syntheses of Macrocyclic Amides from L-Amino Acid Esters by RCM

✍ Scribed by ZHAO, B; SCHAUDT, M; BLECHERT, S

Book ID
122782631
Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
783 KB
Volume
23
Category
Article
ISSN
1005-9040

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The enzymatic synthesis of Z-L-aminoacyl-L-caprolactam amides from Z-protected amino acid esters and DL-a-amino-e-caprolactam (ACL) was accomplished by the thiol proteases papain, bromelain and ficin in aqueous-organic media. Product yields of 96% and 87% for Z-Gly-