Reactions of pyruvates: organocatalytic synthesis of functionalized dihydropyrans in one pot and further transformations to functionalized carbocycles and heterocycles
PROCESS FOR PRODUCING DIHYDRO-2H-PYRAN DERIVATIVES
申请人:OKINAWA INSTITUTE OF SCIENCE AND TECHNOLOGY SCHOOL CORPORATION
公开号:US20150246896A1
公开(公告)日:2015-09-03
Disclosed is a process for preparing dihydro-2H-pyran derivatives of formula I: wherein R
1
and R
2
are defined herein. The process of the invention provides the compound of formula I in concise cascade reactions and in one pot. The compound of formulae I prepared by the process of the invention and its further transformed derivatives are useful for making pharmaceutical composition for the treatment of proliferative diseases.