Patent ID: 7612078

Claim:
A method of treating pulmonary hypertension, comprising administering to a patient in need thereof a composition comprising a compound of formula II or III; wherein formula II is represented by wherein R 1 is selected from the group consisting of halo, lower alkyl, cyano, and trihalomethyl; each R 2 is independently hydrogen, halo, cyano, trihalomethyl, lower alkoxy, carboxylate, an amide, or a sulfonyl group; and n is 1 or 2, provided that when n is 1, R 2 is not hydrogen, and when n is 2, both R 2 groups are not hydrogen; or a pharmaceutically acceptable salt thereof; and formula III is represented by wherein X is halo; R 3 is hydrogen, halo, cyano, or trihalomethyl; and n is 1 or 2, provided that when n is 1, R 3 is not hydrogen, and when n is 2, both R 3 groups are not hydrogen; or a pharmaceutically acceptable salt thereof.