β-咔啉-3-羧酸乙酯

(6R,7aR,11aR,11bS)-11-Oxo-5,6,7a,8,9,10,11,11a,11b,12-decahydro-7-oxa-6a,12-diaza-indeno[1,2-a]fluorene-6-carboxylic acid ethyl ester

(6R,7aR,11aR,11bS)-5,6,7a,8,9,10,11,11a,11b,12-Decahydro-7-oxa-6a,12-diaza-indeno[1,2-a]fluorene-6-carboxylic acid ethyl ester

(exo)-1-carboxymethyl-5-ethoxycarbonyl-4,5,6,11b-tetrahydroisoxazolidino-<2,3-a>-β-carboline