| abstract |
A compound of the formula I in which R 1 is selected from any one of (i) phenyl; (ii) pyridinyl (iii) thienyl (iv) furanyl (v) imidazolyl (vi) triazolyl (vii) pyrrolyl (viii) thiazolyl (ix) pyridyl N-oxide in which each phenyl ring R1 and each heteroaromatic ring R1 , independently, may also be substituted with 1, 2 or 3 substituents that are independently selected from linear or branched C1-C6 alkyl, NO2, CF3, C1-C6 alkoxy, chlorine, fluoro, bromine and iodine. as well as its salts. |