Patent number: 7560434
Abstract: Compounds represented by the formula: and pharmaceutically acceptable salts thereof and prodrugs thereof; wherein R1 is H, CH3, C2H5, C3H7 R2 is H, CH3, C2H5, C3H7, CH?CH2, CH2—OH, CH2F, CF3 R?2 is H, OH, NH2, NH-alkyl, F, N3, OCH3, O—C(O)CH(NH2)alkyl R3 is H, CH3, C2H5, C3H7 R?3 is H, OH, NH2, NH-alkyl, F, N3, OCH3, O—C(O)CH(NH2)alkyl R4 is H, CH3, C2H5, C3H7 At least one of R2, R3, or R4has to be other than H, when X?NH in B R6 is H, CH3, C2H5, R7 is selected from H, alkyl, alkenyl, aryl, acyloxyalkyl, and pivaloyloxyalkyl, aminoacids, CH2CH2SC(O)alkyl; and B is represented by the following structure: X is independently NR6, O, S, R8 and R9 independently is H, NH2, OH, SH, F, Cl, Br, I, aryl, heterocycle, alkyl, alkene, alkyne, S-alkyl, S-aryl, S(O)-alkyl, SO2-alkyl, SO2NH2, SO2NH-alkyl, SO2NH-aryl, NH-alkyl, NH-aryl, N(alkyl)2, N(aryl)2, O-alkyl, O-aryl, O-heterocycle, NH-(CH2)n-aryl, NH—C(O)-alkyl, NH—C(O)-aryl are useful for inhibiting viral RNA polymerases and treating patients
Type:
Grant
Filed:
June 22, 2005
Date of Patent:
July 14, 2009
Assignee:
BioCryst Pharmaceuticals, Inc.
Inventors:
Yarlagadda S. Babu, Pooran Chand, Ajit K. Ghosh, Pravin L. Kotian, V. Satish Kumar
