COMPOUNDS, INTERMEDIATES, COMPOSITIONS, AND METHODS.

摘要

A compound of formula I (see formula) wherein: R1 is -H, -OH, -O(C1-C4 alkyl), -OCOC6H5, -OCO(C1-C6 alkyl), or - OSO2(C2-C6 alkyl); R2 is -H, -OH, -O(C1-C4 alkyl), -OCOC6H5, -OCO(C1-C6 alkyl), -OSO2(C2-C6 alkyl), or halo; R3 is 1-piperidinyl, 1-pyrrolidinyl, methyl-1- pyrrolidinyl dimethyl-1-pyrrolidi o, 4-morpholino, dimethylamino, diethylamino, diisopropylano, or 1-hexamethyleneimino; and n is 2 or 3; and or a pharmaceutically acceptable salt thereof.