(S)-CAMPHORSULFONIC ACID DIISOPROPYLAMIDE GLYCOLATE ACETAL

[1S-(1ALPHA,2ALPHA,4BETA)]-N,N-DIISOPROPYL-7,7-DIMETHYL-4'-OXOSPIRO[BICYCLO[2.2.1]HEPTANE-2,2'-[1,3]DIOXOLANE]-1-METHANESULFONAMIDE