7-AMINO-4-HYDROXY-3-(4-METHOXY-PHENYLAZO)-NAPHTHALENE-2-SULFONIC ACID DERIVATIVES AS FSH ANTAGONISTS

摘要

Formula (I) wherein: R1 is a moiety selected from (a) or (b); R2 is CH¿2?CH2CONH2 or CH2CH2OH; R?3 and R4¿ are independent substituents selected from the group including H, -N(CH¿3?)2, or -OCH3; or pharmaceutically acceptable salts thereof.