77794-60-6

Spiro[2H-1-benzopyran-2,2'-bicyclo[3.1.0]- hexane]-6,8-dicarboxaldehyde,3,4-dihydro-5,- 7-dihydroxy-5'-(1-methylethyl)-4-(2-methylpropyl)-,(1'R,2S,4S,5'S)-rel-(-)-