Patent ID: 6162806
Filing Date: 2000-12-19
Classification: A61K,A61P,A61Q,C07D

Abstract:
A composition containing:an active oxygen scavenger comprising as an active ingredient a pterin derivative of the formula (I): ##STR6## wherein R.sup.1 and R.sup.2 are independently a hydrogen atom, an alkyl group of 1 to 4 carbon atoms, or an acyl group of the formula R.sup.3 --CO--, R.sup.3 is an alkyl group of 1 to 4 carbon atoms, X is a formyl group, A is a group of the formula (Ia): ##STR7## and n is 0 or an integer of 1 or more, with the proviso that when n is an integer of 1 or more, each of R.sup.1 and R.sup.2 is a hydrogen atom;or a pharmaceutically acceptable salt of a compound of the formula (I); anda pharmaceutically or veterinarily acceptable carrier.