反应详情

To a solution of (1aR,5aR)-2-(4-iodo-pyridin-2-yl)-1a,2,5,5a-tetrahydro-1H-2,3-diaza-cyclopropa[a]pentalene-4-carboxylic acid ethyl ester in MeOH (10.00 mL) and THF (10.00 mL) was added a 2 M aqueous solution of sodium hydroxide (5.20 mL, 10.40 mmol). The mixture was stirred at room temperature for 2 h then concentrated. The remaining solid was dissolved in water (30 mL). The solution was acidified to pH ˜2 by addition of 6 M aqueous HCl. The resulting precipitate was collected by filtration, rinsed with water, then dried to give the title compound (190 mg) as a white solid. LCMS m/z=368.1 [M+H]+.

1. concentrationthen concentrated
2. dissolutionThe remaining solid was dissolved in water (30 mL)
3. additionThe solution was acidified to pH ˜2 by addition of 6 M aqueous HCl
4. filtrationThe resulting precipitate was collected by filtration
5. washrinsed with water
6. customdried