copper,furan
Furan
127350-59-83H-Cyclopropa[7,8]phenanthro[3,2-b]furan-3-one,1,1a,1b,2,5,6,8b,9,10,10a-decahydro-4,8-dihydroxy-1a,6,8b-trimethyl-, [1aR-(1aa,1bb,6a,8ba,10aa)]-
127350-58-72,4,8-trihydroxy-1a,6,8b-trimethyl-1,1a,5,6,8b,9,10,10a-octahydro-3H-cyclopropa[7,8]phenanthro[3,2-b]furan-3-one