Patent ID: 8119819

Claim:
A compound of the formula: wherein: the dashed line between C 4 and C 5 indicates that C 4 and C 5 are attached to each other by either a single bond or a double bond; R 2 is selected from R 9 C(═O)—, bromo, N-pyrrolidinyl, 3-isopropyl-2-pentyl-3-urea, p-tolyl, p-CN-Ph, 5-methylfuryl, p-bromo-Ph, and 5-(1-Me-2-Cl-pyrroly1); and R 9 is selected from: 1-methyl-hexyl-NH—, pyrind-4yl-methyl-N(Et)-, (i-Bu) 2 ,N—, PhCH 2 ,CH 2 ,N(Me)-, t-BuOC(O)CH 2 CH 2 NH—, BnNH, (2-pyridin-2-yl-ethyl)-N(Me)-, HOCH 2 CH 2 N(Et), Et(Ph)N(Me), EtOC(O)CH 2 N(Bn), HO(O)CCH 2 CH 2 NH, EtOC(O)CH 2 CH 2 NH, 1-(2-Et-piperidinyl), 1-(2-Me-pyrrolidinyl), bis-(2-ethyl-hexyl)N, t-BuOC(O)CH(i-Pr)NH, MeOC(O)CH 2 CH 2 COCH 2 NH, t-BuOCOCH(Bn)NH, 1-Azepanyl, 1-piperidinyl, 1-(2-methyl-aziridinyl), (5-t-butoxycarbonyl-2,5-diaza- bicyclo[2.2.1]hept-2-yl), (isoamyl) 2 N, t-BuOC(O)CH 2 CH 2 N(i-Bu), EtOC(O)CH 2 NH, EtOC(O)(CH 2 ) 3 NH, 1-azetidinyl, 1-pyrrolidinyl, 1-(2,5-dimethyl-pyrrolidinyl), (2-Oxa-5-aza-bicyclo[2.2.1]hept-5-yl), i-BuNH, c-PrCH 2 N(n-Pr), 2-ethyl-hexyl-N(pyridin-2-ylmethyl) N, t-BuCH 2 CH 2 NH, EtOC(O)CH 2 CH(CO 2 Et)NH, EtOC(O)CH(i-Bu)NH, t-BuOCO (CH 2 ) 2 CH(CO 2 ,Me)NH, 1-(2CO 2 Me)-piperidinyl, pyridin-2-ylmethyl-NH, pyridin-3-ylmethyl-NH, pyridin-4-ylmethyl-NH, pyridin-2-yl-NH, pyridin-3-yl-methyl- N(Me), (EtO) 2 C(O)CH(Me)NH, i-BuN(Me), t-BuOC(O)CH(s-Bu)NH—, ethoxy, hydroxyl, and 4-chloro-phenyl-; or a pharmaceutically acceptable salt thereof.