Reaction #3421935
Related Literature (1)
openreactiondata ↗doi:10.6084/m9.figshare.5104873.v1; patent:US05312625
Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.
Procedure: An amount of 1.94 g of the compound of Example 1 was dissolved in 50 ml of ammonia saturated methanol, the solution was stirred at room temperature for 20 minutes, the methanol was evaporated, and an aqueous citric acid solution added followed by an extraction with ethyl acetate. After washing with aqueous sodium chloride, the mixture was dried over anhydrous magnesium sulfate, the ethyl acetate solution was concentrated, and the residue developed with methylene chloridemethanol (97:3) by silica gel column chromatography to obtain 1.63 g of the desired compound (yield 99.0%). the methanol was evaporated an aqueous citric acid solution added followed by an extraction with ethyl acetate After washing with aqueous sodium chloride the mixture was dried over anhydrous magnesium sulfate the ethyl acetate solution was concentrated
Source ID: ord-ae26edd51f554619a986fff65583cc99