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Bioorg Med Chem Lett. 2001 Dec 17;11(24):3143-6.

Discovery, total synthesis, HRV 3C-protease inhibitory activity, and structure-activity relationships of 2-methoxystypandrone and its analogues.

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1
Merck Research Laboratories, PO Box 2000, Rahway, NJ 07065, USA. sheo_singh@merck.com

Abstract

2-Methoxystypandrone, a naphthoquinone, was isolated from a Chinese herb Polygonum cuspidatum by bioassay guided fractionation using HRV 3C-protease assay. It showed an IC(50) value of 4.6 microM and is moderately selective. A new 10-step, total synthesis of 2-methoxystypandrone was accomplished in 45% overall yield using a Diels-Alder approach. Several analogues of this compound were prepared. Isolation, synthesis and HRV 3C-protease structure-activity relationships of these compounds have been described.

PMID:
11720861
[Indexed for MEDLINE]

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