| abstract |
A compound of formula I: Formula I ** Formula ** in which - X is CH or N; R1 represents -NO2, -N (CH3) 2, or -NCH3 (CH2CH2OH); and R2 represents hydrogen, methyl, ethyl, n-propyl, isopropyl, tert-butyl, cyano, halogen, methoxy, ethoxy, n-propoxy, isopropoxy, trifluoromethyl, difluoromethoxy, methylsulfonyl, acetyl, or acetylamino; or - X is CH, R1 is hydrogen, and R2 is ethyl, isopropyl, tert-butyl, ethoxy, n-propoxy, isopropoxy, methylsulfonyl, acetylamino, or methoxycarbonyl; or - X is CH, R1 is cyano, and R2 is ethyl, isopropyl, tert-15-butyl, ethoxy, n-propoxy, isopropoxy, trifluoromethyl, difluoromethoxy, trifluoromethoxy, methylsulfonyl, or acetylamino; or - X is CH, R1 is chloro, and R2 is ethyl, isopropyl, tert-butyl, ethoxy, n-propoxy, isopropoxy, difluoromethoxy, methylsulfonyl, or acetylamino; or - X is CH, R1 is methoxy or isopropoxyl, and R2 is trifluoromethyl; or - X is CH, R1 is methylsulfonyl or ethylsulfonyl, and R2 is trifluoromethyl, ethyl, isopropyl, tert-butyl, ethoxy, n-propoxy, isopropoxy, or difluoromethoxy; or a salt of such a compound. |