反应详情

To a solution of 2-[(2-chloro-phenyl)-methyl-carbamoyl]-4,5-dihydro-6-oxa-1-thia-benzo[e]azulene-8-carboxylic acid methyl ester (1 g, 2.3 mmol) in dry THF (30 mL) was added lithium aluminum hydride (174 mg, 4.6 mmol) by portion at 0° C. The resulting mixture was stirred under nitrogen atmosphere for 30 minutes. The reaction was monitored by LC-MS. When the starting material was disappeared, the reaction mixture was quenched by the slow addition of water and 10% NaOH aqueous solution. After filtered, the filtrate was concentrated to the crude product, which was recrystallized from MeOH to give 190 as a yellow solid (450 mg, yield 48.9%). MS (ESI) 399.8

1. customthe reaction mixture was quenched by the slow addition of water and 10% NaOH aqueous solution
2. filtrationAfter filtered
3. concentrationthe filtrate was concentrated to the crude product, which
4. customwas recrystallized from MeOH