(6aR,10aR)-3-(1-methansulfonylamino-4-hexyn-6-yl)6a,7,10,10a-tetrahydro-6,6,9-trimethyl-6H-dibenzo(b,d)pyran
(6ar,10ar)-3-(1-methansulfonylamino-4-hexyn-6-yl)6a,7,10,10a-tetrahydro-6,6,9-trimethyl-6h-dibenzo(b,d)pyran