上游原料
2-Furoyl chloride(9R,10S,11S,13S,16R,17R)-9-chloro-17-(2-chloroacetyl)-11,17-dihydroxy-10,13,16-trimethyl-6,7,8,9,10,11,12,13,14,15,16,17-dodecahydro-3H-cyclopenta[a]phenanthren-3-one2-Furoyl chloride(4aS,4bS,5aS,6aS,7R,8R)-7-glycoloyl-7-hydroxy-4a,6a,8-trimethyl-5a,6,6a,7,8,9,9a,9b,10,11-decahydrocyclopenta[7,8]phenanthro[4b,5-b]oxiren-2(4aH)-one(4aS,4bS,5aS,6aS,7R,8R)-7-hydroxy-4a,6a,8-trimethyl-7-(2-[[methyl(dimethylene)-lambda(6)-sulfanyl]oxy]acetyl)-5a,6,6a,7,8,9,9a,9b,10,11-decahydrocyclopenta[7,8]phenanthro[4b,5-b]oxiren-2(4aH)-one(4aS,4bS,5aS,6aS,7R,8R)-7-(2-chloroacetyl)-7-hydroxy-4a,6a,8-trimethyl-5a,6,6a,7,8,9,9a,9b,10,11-decahydrocyclopenta[7,8]phenanthro[4b,5-b]oxiren-2(4aH)-one(4aS,4bS,5aS,6aS,7R,8R)-7-(2-chloroacetyl)-4a,6a,8-trimethyl-2-oxo-2,4a,5a,6,6a,7,8,9,9a,9b,10,11-dodecahydrocyclopenta[7,8]phenanthro[4b,5-b]oxiren-7-yl 2-furoate2-Furoyl chloride(10R,13S,16R,17R)-17-(2-chloroacetyl)-17-hydroxy-10,13,16-trimethyl-6,7,8,10,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-3-one(10R,13S,16R,17R)-17-(2-chloroacetyl)-10,13,16-trimethyl-3-oxo-6,7,8,10,12,13,14,15,16,17-decahydro-3H-cyclopenta[a]phenanthren-17-yl 2-furoate
