Patent ID: 11919894
Assignee: MERCK SHARP & DOHME LLC
Field: Organic fine chemistry (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A compound of structural Formula I:, or pharmaceutically acceptable salt thereof, wherein:
R1 is selected from the group consisting of
1) —C(O)OCH2OC(O)R2;
2) —C(O)—C6-10 aryl, heteroaryl, —C(O)—C1-6 alkyl, —C(O)—C3-6 cycloalkyl, said aryl, heteroaryl, alkyl and cycloalkyl optionally substituted with 1 to 3 groups of Ra;
3) —S—C6-10 aryl, s-heteroaryl, —S—C1-6 alkyl, —S—C3-6 cycloalkyl said aryl, heteroaryl, alkyl and cycloalkyl optionally substituted with 1 to 3 groups of Ra; and
4) —C(O)OCH2dioxolyl, optionally substituted with 1 to 2 groups of Ra;

R2 is selected from the group consisting of C1-6 alkyl, C6-10 aryl, C6-10 heteroaryl, and C3-6 cycloalkyl; said alkyl, aryl, heteroaryl, and cycloalkyl optionally substituted with 1 to 3 groups of Ra; and
Ra is independently selected from the group consisting of C1-6 alkyl, OC1-6 alkyl, oxo, and halogen.