DIENESTROL/HEXESTROL ETHERS OF BUTANOIC ACID/ESTERS

摘要

Novel radioactive stilbene derivatives marked with iodine 125 or 131 of the formula IMAGE I wherein each A and B are both hydrogen or together form a double bond and R is the remainder of amino acid of the formula R-NH2 or a derivative thereof possessing an iodine acceptor group and marked with iodine 125 or 131 and their preparation and antigens obtained therefrom and a process for preparing said antigens.