Patent ID: 11932664
Assignee: INSTITUTE OF ORGANIC CHEMISTRY AND BIOCHEMISTRY AS CR V.V.I.
Field: Organic fine chemistry (Chemistry)
Classification: CPC C  A | IPC C

Claim 3:
4. The method of claim 1, wherein:
R1 is alkyl;
R2 and R3 are each independently selected from the group consisting of H, alkyl, —(CR5R6)n—O—R7, —(CR5R6)n—Ar—O—C(═O)—R7, —(CR5R6)n—O—[(CR5R6)n—O]m—R7, —(CR5R6)n—O—C(=O)—R7 and —(CR5R6)n—O—C(═O)—O—R7; and
R4 is selected from the group consisting of —(CR5R6)n—O—R7, —(CR5R6)n—Ar—O—C(═O)—R7, —(CR5R6)n—O—[(CR5R6)n—O]m—R7, —(CR5R6)n—O—C(═O)—R7 and —(CR5R6)n—O—C(═O)—O—R7; or
pharmaceutically acceptable salts thereof.