| 摘要 |
The present invention provides compounds of the formula wherein R1 is selected from the group consisting of H and CH3; R2 is selected from the group consisting of H and CH3; R3 is selected from the group consisting of H, C1-C3 alkyl, O(CH2)3SO2CH3, O(CH2)2OCH3, O(CH2)2C(CH3)2OH, CN, and OCF2; or a pharmaceutical salt thereof, methods of treating diabetes, intermediates, and a process for preparing compounds of the invention. |
