Hydrochloric Acid → HCID 13136960, compound

Participants

Reaction Steps

Prepared by the method described in Example 38 from 1,2,3,4-tetrahydro-8,9-diethoxy-3-(2-oxopropyl)-5H-[1]benzopyrano[3,4-c]pyridin-5-one (35.9 g, 0.10 moles) and dimethylamine (50 g, 1.11 moles). The product is converted to the dihydrochloride with gaseous hydrogen chloride in methanol. An additional recrystallization from methanol/diethyl ether yielded the final product (6.8 g), mp 210° C. (dec.).

Provenance & Evidence