| 摘要 |
This invention relates to derivatives having the formula: <IMAGE> or +tr <IMAGE> in which R1 is hydrogen or alkyl having 1-6 carbon atoms; X is (CHR2)m in which m is an integer from 2 to 15, or (CHR2)nR3 in which n is an integer from 1 to 15, R2 is hydrogen, or a hydroxy, acyloxy or alkyl group having 1-6 carbon atoms, and the various symbols R2 may have different meanings in each radical (CHR2) when several radicals (CHR2) are present, R3 is a trichloromethyl, acetyl, carboxy or alkoxycarbonyl group, or a phenyl, phenoxy, benzoyl, thienyl or pyridyl radical optionally substituted with at least a halogen atom, or a hydroxy, nitro, amino, cyano, carboxy, alkyloxycarbonyl, alkyl having 1-6 carbon atoms, alkoxy having 1-6 carbon atoms or methylenedioxy group, and to the acid addition salts of the derivatives of the formula (I). |
