152841-86-6 Phenanthro[3,2-b]furan-6(2H)-one,1,3,4,8,9,11b-hexahydro-7,11-dihydroxy-5-methoxy-4,4,9,11b-tetramethyl-,(9S-cis)- 152845-79-9 Spiro[4H-furo[3,2-c]pyran-2(6H),10'-[8H-3,8a]methanofuro[2,3-b]pyrano[4,3-e]pyran]-2',6,8'(3'H)-trione,6'-(3-furanyl)-3,3a,3'a,4',4'a,5',6',9'a-octahydro-3',4,4,5',9'a-pentamethyl-,[3'S-[3'a,3'ab,4'ab,5'b,6'a,8'aa,9'ab,10'S*(R*)]]-