Sodium Methoxide → HCID 12971791, compound

Participants

Reaction Steps

A solution of a 4:1 mixture of 2-[(2-Ethoxypyrid-5-yl)amino]-6-chloro-9-butyl-9H-purine and 2-[(2-Ethoxypyrid-5-yl)amino]-6-chloro-7-butyl-7H-purine (214 mg; 0.62 mmol) in methanol (15 mL) is treated with sodium methoxide (4 mL of a 25% wt. solution in methanol) and the mixture is stirred at room temperature for three days. The reaction mixture is concentrated in vacuo , the residue is treated with water (30 mL), neutralized with acetic acid, and extracted with ethyl acetate (3×40 mL). The combined organic extracts are washed with water (2×30 mL) and brine (1×30 mL), dried over anhydrous magnesium sulfate, and concentrated in vacuo . The residue is purified by preparative thin layer chromatography on silica gel by elution with ethyl acetate-hexane (3:1) to afford 2-[(2-Ethoxypyrid-5-yl)amino]-6-methoxy-9-butyl-9H-purine (94 mg), m.p. 174-176° C. (compound 1).

Provenance & Evidence