Patent ID: 11958864
Assignee: MERCK SHARP & DOHME LLC
Field: Pharmaceuticals (Chemistry)
Classification: CPC C  A | IPC A  C

Claim 0:
1. A compound having the formula (I):, , wherein:
R1 is CHR2—O—C(O)—Y—R3, C(O)—C1-C10 alkyl, CHR2—O—P(O)(OH)2 or, Y is a bond or —O—;
R2 is hydrogen or C1-C6 alkyl;
R3 is selected from the group consisting of C1-C6 alkyl, (CH2)x—O—C1-C6 alkyl, and (CH2)x—NR4R5, wherein said C1-C6 alkyl group can be optionally substituted with one to three groups independently selected from the group consisting of halo, hydroxy, methoxy and ethoxy;
R4 is hydrogen or C1-C6 alkyl;
R5 is hydrogen or C1-C6 alkyl;
x is an integer from one to four;, or a pharmaceutically acceptable salt thereof.