反应详情

A solution of {3-[(2-hydroxy-benzylamino)-methyl]-phenyl}-acetic acid methyl ester (0.81 g) in anhydrous tetrahydrofuran (20 mL) was treated with lithium borohydride (186 mg) and the whole stirred at room temperature for 30 minutes. The reaction mixture was then heated at 60° C. for 2 hours under nitrogen. After cooling to room temperature the mixture was partitioned between diethyl ether and dilute aqueous hydrochloric acid, the aqueous layer was separated and treated with excess solid sodium bicarbonate. The aqueous layer was extracted three times with dichloromethane and the combined organic washings were dried, filtered and evaporated under reduced pressure to yield the sub-titled compound (400 mg).

1. temperatureThe reaction mixture was then heated at 60° C. for 2 hours under nitrogen
2. temperatureAfter cooling to room temperature the mixture
3. customwas partitioned between diethyl ether and dilute aqueous hydrochloric acid
4. customthe aqueous layer was separated
5. additiontreated with excess solid sodium bicarbonate
6. extractionThe aqueous layer was extracted three times with dichloromethane
7. customthe combined organic washings were dried
8. filtrationfiltered
9. customevaporated under reduced pressure