Epichlorohydrin → HCID 86749231, compound

Participants

Reaction Steps

A mixture of 1-ethyl-6-hydroxy-N-(cyclohexylmethyl)-1H-pyrazolo[3,4-b]quinolin-4-amine (2 g), DMSO (30 ml) and KOH (2 g) was stirred at room temperature for 0.5 hours, then epichlorohydrin (0.49 ml) was added and the mixture was stirred overnight. The reaction mixture was partitioned between CH2Cl2 and water, and then the CH2Cl2 layer was separated and evaporated. The residue was purified by column chromatography on silica gel eluting with ethyl acetate to afford the product which was combined with the product from a similar experimental. The combined material was purified further by column chromatography on silica gel eluting with 90% ether/t-butylmethylether, followed by crystallization from ether, to afford 1-ethyl-6-(2,3-epoxypropoxy)-N-(cyclohexylmethyl)-1H-pyrazolo[3,4-b]quinolin-4amine, m.p. 168°-170° C.

Provenance & Evidence