| abstract |
Compounds of the formula WHEREIN R1 is hydrogen or halo, R2 is hydrogen or lower alkyl of 1 to 3 carbon atoms and R3 is hydrogen or organic acyl, with the proviso that R1 and R2 are not hydrogen at the same time, if R3 is hydrogen or acetyl, or OPTICALLY ACTIVE ANTIPODES THEREOF THE COMPOUNDS AS WELL AS THEIR OPTICALLY ACTIVE ANTIPODES ARE USEFUL AS ANTIPHLOGISTICS WITH A SURPRISINGLY SMALL ULCEROGENIC SIDE EFFECT. |