Novel compounds useful in the preparation of enantiomerically-pure 3-methyl-5-(1-(C.sub.1 -C.sub.3 -alkyl)-2-pyrrolidinyl)isoxazole in high yield, namely 5(S)-(3-methyl-5-isoxazolyl)-2-pyrrolidinone, 3-methyl-5-(1-methyl-2-pyrrolidinyl)-5-hydroxy-4,5-dihydro-isoxazole, and 1-(1-methyl-2(S)-pyrrolidinyl)-1,3-butanedione-3-oxime.
A novel process for preparing enantiomerically-pure 3-methyl-5-(1-(C.sub.1 -C.sub.3 -alkyl)-2-pyrrolidinyl)isoxazole in high yield, wherein a protected 2-oxo-pyrrolidine starting material is reacted with a suitable organic anion and a resulting beta-keto oxime intermediate is cyclized and dehydrated.
A compound of formula (I) wherein the substituents are as defined in the text for use in inhibiting insulin-like growth factor 1 receptor activity in a warm blooded animal such as man.
Pyrimidine Derivatives for Use as Anticancer Agents
申请人:Thomas Andrew Peter
公开号:US20080167297A1
公开(公告)日:2008-07-10
A compound of formula (I), wherein the substituents are as defined in the text for use in inhibiting insulin-like growth factor 1 receptor activity in a warm blooded animal such as man.