Dihydro-3-(-1-phenethyl)1,2,3,6-tetrahydro-4-pyridyl)-2(3H) furanones

摘要

The present invention concerns novel compounds of formula I, -CH2-CH2- I wherein R1 is hydrogen or lower alkyl, R2 is hydrogen, lower alkyl, lower alkoxy, lower alkylthio, fluorine, chlorine, bromine or trifluoromethyl, and R3 is hydrogen, chlorine, lower alkyl or lower alkoxy, USEFUL AS ANALGESICS.