(1aR,3aS,6aS,6bR)-3-Bromo-5,5-dimethyl-1a,3a,6a,6b-tetrahydro-4,6-dioxa-1-aza-cyclopropa[e]indene-1-carboxylic acid methyl ester

((3aS,4R,5R,7aR)-2,2-Dimethyl-3a,4,5,7a-tetrahydro-[5,5']bi[benzo[1,3]dioxolyl]-4-yl)-carbamic acid methyl ester

N-((3aS,4R,5R,7aR)-2,2-Dimethyl-3a,4,5,7a-tetrahydro-[5,5']bi[benzo[1,3]dioxolyl]-4-yl)-4-methyl-benzenesulfonamide

N-[(1R,2R,5R,6S)-2-(1,3-benzodioxol-5-yl)-5,6-(isopropylidenedioxy)cyclohex-3-en-1-yl]-N-(methoxycarbonyl)-4-methylbenzenesulfonamide