反应详情

温度

-10 °C

2-Chloro-9-cyclopentyl-5,7,8,9-tetrahydro-6H-pyrimido [4,5-b][1,4] diazepin-6-one (318 mg, 0.0012 mol) and MeI (88 μl, 0.0014 mol, 1.18 eq) were added to DMF (5 ml) and the solution cooled to −10° C. using acetone/dry ice before the addition of NaH (30 mg, 0.0013 mol, 1.07 eq). The RM was then stirred at 0° C. for 30 min and rt for 30 min. The RM was concentrated and the product extracted using EtOAc/H2O. The organic extracts were combined, washed with sat NaCl, dried using MgSO4, filtered and the filtrate evaporated under reduced pressure and further dried in vacuo to give the product as a purple oily residue (252 mg, 75%); Rt=13 min (Vydac 1); MS+ve: 281.2.

1. concentrationThe RM was concentrated
2. extractionthe product extracted
3. washwashed with sat NaCl
4. customdried
5. filtrationfiltered
6. customthe filtrate evaporated under reduced pressure
7. customfurther dried in vacuo