Synonyms: (7S)-9-hydroxy-1,2,3-trimethoxy-7-(methylamino)-6,7-dihydrobenzo[a]heptalen-10(5H)-one;Benzo(a)heptalen-9(5H)-one, 6,7-dihydro-10-hydroxy-1,2,3-trimethoxy-7-(methylamino)-, (S)-;benzo[a]heptalen-10(5H)-one, 6,7-dihydro-9-hydroxy-1,2,3-trimethoxy-7-(methylamino)-, (7S)-