1-OXASPIRO(4.5)DEC-3-ENE-4-CARBOXYLIC ACID, 3-METHYL-2-OXO-, 3-(DIMETHYLAMINO)PR 1-Oxaspiro(4.5)dec-3-ene-4-carboxylic acid, 3-methyl-2-oxo-, 3-(dimethylamino)propyl ester, hydrochloride 85540-58-5 N-Dimethylaminopropyl oxycarbonyle-3 spirolactone chlorhydrate [French]