反应详情

To NaH (2.4 mmol, 115 mg, 50% in oil, pentane washed and decanted), in DMF (5 mL) was added 2-methyl-6-mercaptopurine (400 mg, 2.4 mmol) in portions, at 0° After stirring 2 h 1-(1-chloro-2-hydroxy-3-propanyl)-4-(4,4'- difluorobenzhydryl)piperazine (2.4 mmol, 0.914 g) was added in DMF (5 mL) dropwise over 15 min, at 0° C., under nitrogen. After three days, the solution was filtered and the DMF removed from the filtrate in vacuo (vacuum oven, 1 mm Hg, 60° C.) to give the crude product. Silica gel flash column chromatography using 10% MeOH:CH2Cl2 gave the product with DMF. This product was dried 72 h in vacuo (room temperature, 1 mm Hg) to give pure product (290 mg, 23.2%). mp 83°-86° C. (dec.) DCI/MS (M+1)=511. (300 MHz) 1H NMR (CDCl3)δ: 8.1 (s, 1H), 7.3 (m, 4H), 6.95 (m, 4H), 4.2 (s, 1H), 4.15 (m, 1H), 3.4 and 3.6 (d of d, 2H), 2.65 (s, 3H), 2.6 (M, 6H), 2.4 (m, 4H).

1. filtrationthe solution was filtered
2. customthe DMF removed from the filtrate in vacuo (vacuum oven, 1 mm Hg, 60° C.)
3. customto give the crude product
4. customThis product was dried 72 h in vacuo (room temperature, 1 mm Hg)