rac-(4aR,5S,6aS,8R,10aR)-4a-(3-aminopropyl)-8-methyl-3-oxooctahydro-1H,6H-spiro[indeno[1,7a-b]pyran-10,2'-[1,3]dioxolan]-5-yl acetate

rac-(2R,3S,3aR,6S,7aR)-3-(3-((tert-butoxycarbonyl)amino)propyl)-3-hydroxy-3a-(3-hydroxypropyl)-6-methyloctahydrospiro[indene-4,2'-[1,3]dioxolan]-2-yl acetate