Patent ID: 6265572
Filing Date: 2001-07-24
Classification: A61K,A61P,C07C,C07K

Abstract:
A compound of the formula: ##STR43##or hydrolyzable organic esters or ethers thereof;whereinR.sub.2 and R.sub.3 are each independently lower alkyl, or taken together with their attached carbon atom form an aliphatic carbocyclic ring containing 4 to 6 carbon atoms;R.sub.5 is hydrogen, lower alkyl, R--SO.sub.2 --, R.sub.6 --(CH2).sub.m --CO-- or R.sub.8 --X--(CH2).sub.y --CO--, wherein R is lower alkyl, R.sub.6 and R.sub.8 are hydrogen or lower alkyl, X is --O-- or --NH--, m is an integer of from 1 to 7 and y is an integer of from 0 to 7;n is an integer of from 1 to 3; anda, b, c, and d denote asymmetric carbon atoms.