1-[7-[2-hydroxy-3-(propan-2-ylamino)propoxy]-1-benzofuran-2-yl]ethanone

Conditions: temp:100.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: A mixture of 214 mg. of potassium salt of 2-acetyl-7-hydroxybenzofuran, 70 mg. of isopropylamine and 0.8 ml. of epichlorohydrin was suspended into 5 ml. of ethanol. After heating the suspension in a sealed tube at 100° C. for 20 hours, the reaction mixture was filtered and then the solvent was evaporated under a reduced pressure. The residue was subjected to thin layer chromatography (solid support: Kieselgel PF254 made by E. Merck, developer: benzene-chloroform-methanol-28 % aqueous ammonia (17:4:3:0.4), eluant: chloroform) for the purification to give 2-acetyl-7-(2-hydroxy-3-isopropylaminopropoxy)benzofuran having a melting point of 115° C. A mixture of 214 mg the reaction mixture was filtered the solvent was evaporated under a reduced pressure The residue was subjected to thin layer chromatography (solid support: Kieselgel PF254 made by E. Merck, developer: benzene-chloroform-methanol-28 % aqueous ammonia (17:4:3:0.4), eluant: chloroform) for the purification