Patent ID: 6815547
Filing Date: 2004-11-09
Classification: C07D

Abstract:
A compound of formula (II) whereinRâ€²1 represents a hydrogen atom or a hydroxyl radical; Râ€²2 represents a protected carboxyl or carboxymethyl radical; and R4 represents an alkyl radical containing 1 to 6 carbon atoms, an alkenyl-CH2â€”, alkynyl-CH2â€”, cycloalkyl, or cycloalkylalkyl radical, wherein the alkenyl and alkynyl portions contain 2 to 6 carbon atoms and the cycloalkyl portions contain 3 to 8 carbon atoms, or a diastereolsomeric form, a cis form, or a trans form of a compound of formula (II), or a salt of any of the foregoing.