1-AZABICYCLO(2.2.2)OCTAN-3-ONE 29924-73-0 3-Oxoquinuclidine 3-Quinuclidinone 3-Quinuclidone 3731-38-2 82737-04-0 EINECS 223-087-9 MKC-2 NSC 168448 Quinuclidin-3-one Quinuclidone