7-aminocarbomethoxy-2,2-dimethyl-6-(7-methoxybenzo[d][1,3]dioxol-5-yl)-(3aS,7R,7aS)-4,7-dihydro[d][1,3]dioxol-4-one

7-aminocarbomethoxy-2,2-dimethyl-6-(7-methoxybenzo[d][1,3]dioxol-5-yl)-(3aR,4R,7R,7aS)-4,7-dihydro[d][1,3]dioxol-4-ol

6-aminocarbomethoxy-1,2-dihydroxy-5-(7-methoxybenzo[d][1,3]dioxol-5-yl)-4-cyclohexene-1-yl benzoate

7-aminocarbomethoxy-2,2-dimethyl-6-(7-methoxybenzo[d][1,3]dioxol-5-yl)-(3aR,4S,7R,7aS)-4,7-dihydro[d][1,3]dioxol-4-yl benzoate

methyl (1S,4S,5R,6S)-4,5-(isopropylidenedioxy)-7-azabicyclo[4.1.0]hept-2-ene-7-carboxylate