4-methoxymethylene-6-iodo-4H-isoquinoline-1,3-dione → HCID 178518376, compound

Participants

Reaction Steps

A mixture of 2-aminomethyl-5-(2-pyrrolidin-1-yl-ethoxy)-pyridin-4-ol (237 mg, 1.0 mmole), 3 mL of N,N-dimethylformamide is stirred, then 4-methoxymethylene-6-iodo-4H-isoquinoline-1,3-dione (329 mg, 1.0 mmole) is added and the reaction mixture stirred for one hour. The reaction mixture is evaporated to dryness, taken up in methanol and purified by HPLC (acetonitrile/water without trifluoroacetic acid); the fractions belonging to the product peak (as determined by MS) were evaporated and still had impurities. This is re-purified by HPLC (acetonitrile water with 0.2% trifluoroacetic acid). The product is isolated by evaporation in-vacuo to give a yellow-orange solid assumed to be the bis trifluoroacetic acid salt, 30 mg, (4%); MS (ES +): m/z 535.1 (M+H).

Provenance & Evidence