107220-28-0 AF 102B hydrochloride Cevimeline hydrochloride Evoxac FKS 508 Spiro(1-azabicyclo(2.2.2)octane-3,5'-(1,3)oxathiolane), 2'-methyl-, hydrochloride, cis- cis-2'-Methylspiro(1-azabicyclo(2.2.2)octane-3,5'-(1,3)oxathiolane) hydrochloride