Synonyms: (1R)-1β,3α-Dimethyl-9-methoxy-3,4,5,10-tetrahydro-1H-naphtho[2,3-c]pyran-5,10-dione;(1R)-1β,3α-Dimethyl-9-methoxy-3,4-dihydro-1H-naphtho[2,3-c]pyran-5,10-dione;(1R)-3,4-Dihydro-9-methoxy-1,3α-dimethyl-1H-naphtho[2,3-c]pyran-5,10-dione;(1R,3R)-3,4-Dihydro-9-methoxy-1,3-dimethyl-1H-naphtho[2,3-c]pyran-5,10-dione;1β,3α-Dimethyl-9-methoxy-3,4-dihydro-1H-naphtho[2,3-c]pyran-5,10-dione;Isoeleutherin