(4aR,4bS,8S,11aS,11bS,13aR)-8-methyldodecahydrospiro[benzo[f]pyrido[2,1-a]isoquinoline-2,2'-[1,3]dithiane]-6,12(1H,3H)-dione

(4aR,4bS,8S,11aS,13aR)-8-methyl-6-oxo-1,3,4,4a,4b,5,6,8,9,10,11,11a,13,13a-tetradecahydrospiro[benzo[f]pyrido[2,1-a]isoquinoline-2,2'-[1,3]dithian]-12-yl trifluoromethanesulfonate

2-(S)-(methoxycarbonylmethyl)-6-(S)-methylpiperidine