Piperidine → HCID 76552567, compound

Participants

Reaction Steps

180 mg (0.57 mmol) of 3-[5-(2,4-Dioxo-thiazolidin-5-ylidenemethyl)-benzofuran-3-yl]-acrylic acid (example 72) was suspended in THF (25 ml). To this suspension was added DIEA (2 eq.) and piperidine (3 eq.). Under stirring was added PyBOP (1.5 eq.). After 30 min the reaction mixture became clear, after an additional 1 h a precipitate was formed. The reaction was stirred overnight. The precipitate was filtered off and washed with THF and 1N HCl affording the title compound in high purity.

Provenance & Evidence