p-Toluenesulfonic acid monohydrate → HCID 57521313, compound

Participants

Reaction Steps

The compound 13 (220 mg) was dissolved in methanol (1.1 mL), a p-toluenesulfonic acid monohydrate (20 mg) was added at room temperature, and the mixture was stirred for 2 hours. The residue obtained by concentration of the reaction liquid under reduced pressure was purified by silica gel column chromatography (hexane:ethyl acetate=2:1→1:1→ethyl acetate) to obtain a titled compound (82 mg) having the following physical property values.

Provenance & Evidence