furanone,nitrophenyl,methylene,oxobutyl,furan
Furan
64719-81-9(3R,3aR,5S,6aβ,10aR)-4,5,4,5,6,6a,9,10-Octahydro-5-(3-furyl)-10β-hydroxy-8α-methylspiro[furan-3(2H),7(8H)-naphtho[1,8a-c]furan]-2,3(3aH)-dione 76676-33-0(7S,8R,9S,10R,13S,14S,17R)-10,13-dimethyl-7-(propan-2-yl)-1,6,7,8,9,10,11,12,13,14,15,16-dodecahydro-3'H-spiro[cyclopenta[a]phenanthrene-17,2'-furan]-3,5'(2H,4'H)-dione