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Convergent synthesis of alpha-ketoamide inhibitors of Pin1.


ABSTRACT: A convergent synthesis of alpha-ketoamide inhibitors of Pin1 is described. An alpha-hydroxyorthothioester derivative of Ser was reacted directly with an amine synthon. The reaction was catalyzed by HgO and HgCl(2) to form alpha-hydroxyamide. Thus, hydrolysis and coupling were combined in one step with 80% yield. Two diastereomers of a phospho-Ser-Pro alpha-ketoamide analogue were synthesized. The IC(50) values of 100 and 200 microM were surprisingly weak for Pin1 peptidyl prolyl isomerase.

SUBMITTER: Xu GG 

PROVIDER: S-EPMC2844255 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature

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Convergent synthesis of alpha-ketoamide inhibitors of Pin1.

Xu Guoyan G GG   Etzkorn Felicia A FA  

Organic letters 20100201 4


A convergent synthesis of alpha-ketoamide inhibitors of Pin1 is described. An alpha-hydroxyorthothioester derivative of Ser was reacted directly with an amine synthon. The reaction was catalyzed by HgO and HgCl(2) to form alpha-hydroxyamide. Thus, hydrolysis and coupling were combined in one step with 80% yield. Two diastereomers of a phospho-Ser-Pro alpha-ketoamide analogue were synthesized. The IC(50) values of 100 and 200 microM were surprisingly weak for Pin1 peptidyl prolyl isomerase. ...[more]

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