Patent ID: 7211599

Claim:
A therapeutic method for treatment of non-malignant diseases characterized by the excessive growth of tissue comprising administering to a patient in need of said therapy, an effective amount of a compound of formula (I): wherein R 1 is lower alkyl, (hydroxy)lower alkyl, lower alkenyl, lower alkynyl, lower cycloalkyl, phenyl, benzyl or 2-thienyl; R 2 , R 3 , R 4 and R 5 are the same or different and are each hydrogen or lower alkyl; each R 6 is independently hydrogen, lower alkyl, hydroxy, (hydroxy)lower alkyl, lower alkoxy, benzyloxy, lower alkanoyloxy, nitro or halo; R 7 is hydrogen, lower alkyl or lower alkenyl, X is oxy or thio, Y is carbonyl, —(C 1 -C 3 )alkyl(CO)—, —(CH 2 ) 1-3 —, or —(CH 2 ) 1-3 SO 2 —; Z is hydroxy, lower alkoxy, (C 2 -C 4 )acyloxy, —N(R 8 )(R 9 ), phenylamino, (ω-(4-pyridyl)(C 2 -C 4 alkoxy), (ω-((R 8 )(R 9 ) amino)(C 2 -C 4 alkoxy), an amino acid ester of (ω-(HO)(C 2 -C 4 ))alkoxy, —N(R 8 )CH(R 8 )CO 2 H, 1′-D-glucuronyloxy, —SO 3 H, —PO 4 H 2 , —N(NO)(OH), —SO 2 NH 2 , —PO(OH)(NH 2 ), —OCH 2 CH 2 N(CH 3 ) 3 + , or tetrazolyl; wherein R 8 and R 9 are each H, (C 1 -C 3 )alkyl or together with N are a 5- or 6-membered heterocyclic ring comprising 1-3 N(R 8 ), S or nonperoxide O; n is 0, 1, 2, or 3; and each alkyl or phenyl group of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and Z is optionally substituted with 1, 2, or 3 (C 1 -C 4 )alkyl groups; or a pharmaceutically acceptable salt thereof; wherein the disease is benign prostate hyperplasia.