反应详情

Prepared according to the procedure for N-[(1S,2R)-2-aminocyclopentyl]-2,6-dimethoxybenzamide hydrochloride (Intermediate 3) from tert-butyl N-[(1S,2S)-2-aminocyclopentyl]carbamate (CAS number 586961-34-4; 1.0 g, 4.99 mmol) and 2,6-dimethoxybenzoyl chloride (CAS number 1989-53-3; 1.50 g, 7.99 mmol) except that after the reaction was complete it was partitioned between DCM and a saturated solution of sodium bicarbonate, filtered through a hydrophobic frit and concentrated in vacuo. The Boc protected intermediate was purified by column chromatography (silica, 0-100% ethyl acetate/petrol) to give a white solid. After deprotection with HCl in 1,4-dioxane, azeotropic distillation from toluene afforded the title compound.

1. customPrepared
2. customwas partitioned between DCM
3. filtrationa saturated solution of sodium bicarbonate, filtered through a hydrophobic frit
4. concentrationconcentrated in vacuo
5. customThe Boc protected intermediate was purified by column chromatography (silica, 0-100% ethyl acetate/petrol)
6. customto give a white solid
7. distillationAfter deprotection with HCl in 1,4-dioxane, azeotropic distillation from toluene