METHOD FOR PRODUCING CEREULIDE AND DERIVATIVE THEREOF, INTERMEDIATE FOR PRODUCTION OF CEREULIDE, AND CEREULIDE DERIVATIVE
申请人:STELLA PHARMA CORPORATION
公开号:US20150183831A1
公开(公告)日:2015-07-02
The purpose of the present invention is to provide a novel method for producing cereulide and a derivative thereof; an intermediate for cereulide; and a novel cereulide derivative. A novel didepsipeptide, a novel tetradepsipeptide, a novel octadepsipeptide and a novel dodecadepsipeptide are prepared. A linear precursor of cereulide or a derivative thereof, which is composed of any one of the novel depsipeptides, is cyclized by forming an intramolecular amide bond.
Functionalisation of beta or gamma carboxyl group of aspartic and glutamic acids with labile substituents was performed via the use of N-trichloroethoxycarbonyl-5-oxazolidinone as protective group.
METHOD FOR PREPARING RAMALIN
申请人:Korea Ocean Research and Development Institute