(1.ALPHA.,2.BETA.,4.BETA.,5.ALPHA.,7.BETA.)-9-METHYL-3-OXA-9-AZATRICYCLO(3.3.1.02,4)NON-7-YL .ALPHA.-HYDROXY-.ALPHA.-2-THIENYL-2-THIOPHENEACETATE
(1.alpha.,2.beta.,4.beta.,5.alpha.,7.beta.)-9-methyl-3-oxa-9-azatricyclo(3.3.1.02,4)non-7-yl .alpha.-hydroxy-.alpha.-2-thienyl-2-thiopheneacetate