Synonyms: 18-Noradifoline,5-decarboxy-10,21-dideoxy-3,4,5,6-tetrahydro-19-hydroxy-4,21-dimethyl-, (3b,19b,20a,21a)-; (+)-Correantine A;8H-10-Oxa-1,7b-diazabenzo[5,6]cyclohepta[1,2,3-jk]fluorene-12-carboxylic acid,1,2,3,8a,9,12a,13,13a-octahydro-8-hydroxy-1,9-dimethyl-, methyl ester, [8R-(8a,8ab,9b,12aa,13aa)]-; Correantine A