(R)-2',3'-Dihydro-6'-hydroxy-2',2',4',6'-tetramethylspiro(cyclopropane-1,5'-(5H)inden)-7'(6'H)-one 112953-12-5 6-Deoxyilludin M Spiro(cyclopropane-1,5'-(5H)inden)-7'(6'H)-one, 2',3'-dihydro-6'-hydroxy-2',2',4',6'-tetramethyl-, (R)-