HCID 20313708, compound → HCID 20313656, compound

Participants

Reaction Steps

To purify the intermediate (1.1a), the crude residue obtained after stripping off the chloroform is converted to the hydrochloride, in ether, and the resulting salt taken up in chloroform. Precipitation with ether, followed by two further reprecipitations from chloroform solution by either yields (1.1a) 1,1'-{3-[2-(3,4-dihydro-6,7-dimethoxy-1-isoquinolinyl)ethyl]heptamethylene}bis[3,4-dihydro-6,7-dimethoxyisoquinoline] trihydrochloride trihydrate, as a yellow solid, m.p. 130-150° (dec.).

Provenance & Evidence