A novel 2,18-bridged biliverdin derivative
Abstract
Base-catalysed dehydrohalogenation of a 3,18-bis(2-ohloroethyl)biliverdin 1 affords a novel 3-vinylbiliverdin 3 in which the 2- and 18-positions are bridged with a propano-tether; the structure of 3 has been established using single crystal X-ray and 1H nuclear Overhauser effect studies.