Dichloromethane → HCID 22185472, compound

Participants

Reaction Steps

A solution of methanesulfonyl chloride (33 mg, 0.3 mmol) in dichloromethane (4 ml) was treated with a solution of Example 3 (103 mg, 0.3 mmol) in methanol (1 ml). The mixture was stirred at room temperature for 2 hours then diluted with dichloromethane and sodium hydrogen carbonate solution. The aqueous layer was then separated and extracted with additional dichloromethane. The combined organic layers were then washed with brine, dried over anhydrous magnesium sulphate, filtered and concentrated at reduced pressure. The residue was chromatographed on silica gel eluting with dichloromethane/methanol/0.880 ammonia solution (10:1:0.1) to give the title compound (16 mg, 13%) as a pale yellow solid; MS(ES+) m/e 421/423 [M+H]+.

Provenance & Evidence