InChI=1/C21H33NO/c1-13-9-15-11-20(2,3)10-14-5-6-17-19(18(14)15)16(13)7-8-21(17,4)22-12-23/h12-13,15-17,19H,5-11H2,1-4H3,(H,22,23)/t13-,15?,16?,17?,19?,21-/m0/s N-(1,4,7,7-Tetramethyl-1,2,3,3a,4,5,5a,6,7,8,9,10,10a,10b-tetradecahydro-pyren-1-yl)-formamide N-Formyl-7-amino-11-cycloamphilectene formamide, [(1S,4S)-1,2,3,3a,4,5,5a,6,7,8,9,10,10a,10b-tetradecahydro-1,4,7,7-tetramethyl-1-pyrenyl]- rel-N-[(1R,4R)-1,4,7,7-tetramethyl-1,2,3,3a,4,5,5a,6,7,8,9,10,10a,10b-tetradecahydropyren-1-yl]formamide