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) is stirred at room temperature for 0.5 hours, then epichlorohydrin (0.49 ml) is added, and the mixture is stirred overnight. The reaction mixture is partitioned between CH2Cl2 and water, and then the CH2Cl2 layer is separated and evaporated. The residue is purified by column chromatography on silica gel eluting with ethyl acetate to afford the product that is combined with the product from a similar experimental. The combined material is 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