Synthesis 2007(18): 2797-2802  
DOI: 10.1055/s-2007-983871
PAPER
© Georg Thieme Verlag Stuttgart · New York

Studies toward the Total Synthesis of (-)-Dictyostatin: Stereoselective Preparation­ of the C1-C10 Fragment [1]

Vobbalareddy Saibabaa,b, Alwar Sampatha, Khagga Mukkantib, Javed Iqbala, Parthasarathi Das*a
a Discovery Research, Dr. Reddy’s Laboratories Ltd., Bollaram Road, Miyapur, Hyderabad 500049, AP, India
Fax: +91(40)23045438; e-Mail: parthasarathi@drreddys.com;
b Chemistry Division, Institute of Science & Technology, JNT University, Kukatpally, Hyderabad 500072, AP, India
Further Information

Publication History

Received 22 May 2007
Publication Date:
29 August 2007 (online)

Abstract

The efficient synthesis of the C1-C10 fragment of (-)-dictyostatin has been achieved by Evans-Tischenko reduction of a β-hydroxy ketone, followed by cross metathesis and Z-olefination. The β-hydroxy ketone is easily synthesized diastereoselectively by allylation and dihydroxylation of an alcohol.

1

DRL Publication No. 622.

1

DRL Publication No. 622.

12

Novartis AG, Annual Report to the Securities Exchange Commission, file number 1-15024, Form 20-F, Jan 28, 2005, 42.