(1R,2R,4S)-spiro[bicyclo[2.2.2]octane-2,2'-oxirane] InChI=1/C9H14O/c1-3-8-4-2-7(1)5-9(8)6-10-9/h7-8H,1-6H2/t7-,8+,9-/m0/s spiro[bicyclo[2.2.2]octane-2,2'-oxirane], (2R)-