| abstract |
The present invention pertains to a compound having an excellent blood sugar lowering effect, or a pharmaceutically-acceptable salt thereof. A compound represented by general formula (I), or a pharmaceutically-acceptable salt thereof. [In the formula: R 1 represents a C1-C3 alkyl group; R 2 represents the same or different C1-C3 alkyl group; R 3 represents an optionally-substituted pyridyl group or the like; R 4 and R 5 are the same or different, and each represent a C1-C3 alkyl group; R 6 and R 7 are the same or different, and each represent a C1-C3 alkyl group; and n represents 0 to 3.] |