A PROCESS FOR PREPARING CARBOSTYRIL DERIVATIVES

摘要

PURPOSE:Carbostyril derivatives of formula I are new: (where R1 is H, lower alkyl, lower alkenyl or aralkyl; the bond in the 3-4 position is single or double bond; R2 is H or lower alkyl; 1<=m+n<=11; X is halogen), in an example, N-ethyl-5-(3-cyano) propoxy-3,4-dihydrocarbostyril.