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A catalytic asymmetric synthesis of a versatile intermediate for phorbol derivatives

✍ Scribed by Hideaki Sato; Yun Sik Kim; Masakatsu Shibasaki

Publisher: Elsevier Science
Year: 1999
Tongue: French
Weight: 242 KB
Volume: 40
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(99)00340-8

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✦ Synopsis

A catalytic asynunetric cyclopropanation of enol silyl ether 9 gave the laeton¢ 3 in up to 78% e¢. The lacton¢ 3 was then Iransformcd into 2, potentially a very versatile intermediate for phorbol analogs, using an inu'amol~cular nitrile oxide cycloaddition as a key step.

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