Patent number: 9139595
Abstract: The present invention provides a compound of the formula (I) or (II), wherein R1 is H, alkyl, alkenyl or aryl, R2 is H, alkyl or aryl, R3 is H, a alkyl, alkenyl or aryl, R4 and R4-R8 are independently R10, C(O)R10 or SO2R10, wherein R10 is H, alkyl, alkenyl or aryl, and R9 is R9a, C(O)R9a or SO2R9a, wherein R9a is H, alkyl, alkenyl or aryl. R9a can be unsubstituted or substituted with one or more oxo(?O), OR9b, OC(O)R9b, OSO2R9b, NHR9b, NHC(O)R9b and NHSO2R9b groups. R9b is H, alkyl, alkenyl, or aryl. R9b can be unsubstituted or substituted with one or more groups such as oxo(?O), OR9c, CO2R9c, CO2R9c and OC(O)R9c. R9c is H, or a unsubstituted or substituted alkyl, alkenyl or aryl. The present invention further provides a composition comprising at least one compound of the present invention and a pharmaceutically acceptable carrier, alone or in combination with at least one additional active agent.
Type:
Grant
Filed:
May 12, 2014
Date of Patent:
September 22, 2015
Assignee:
The United States of America, as represented by the Secretary, Department of Health and Human Services
Inventors:
Michael R. Boyd, Kirk R. Gustafson, Charles L. Cantrell