反应详情

温度

77.5 °C

A mixture of 1,3-dipropyl-8-(1H-pyrazol-4-yl)-7-(2-trimethylsilanyl-ethoxymethyl)-3,7-dihydro-purine-2,6-dione (0.100 g, 0.23 mmol), methanesulfonic acid 1-(4-isopropyl-phenyl)-5-oxo-pyrrolidin-3-ylmethyl ester (0.107 g, 0.34 mmol), K2CO3 (0.048 g, 0.34 mmol) and DMF (1 ml) were heated at 75-80° C. for 16 hrs. Reaction mixture was cooled to 20-25° C. and water was added (10 ml). The aqueous layer was extracted with ethyl acetate, washed with saturated brine solution. The organic layer was dried over Na2SO4 and evaporated to obtain crude product (0.2 g). The crude product was purified by preparative TLC to obtain pure 8-{1-[1-(4-isopropyl-phenyl)-5-oxo-pyrrolidin-3-ylmethyl]-1H-pyrazol-4-yl}-1,3-dipropyl-7-(2-trimethylsilanyl-ethoxymethyl)-3,7-dihydro-purine-2,6-dione (0.12 g, 80%) as a light yellow oil.

1. customReaction mixture
2. temperaturewas cooled to 20-25° C.
3. extractionThe aqueous layer was extracted with ethyl acetate
4. washwashed with saturated brine solution
5. dry with materialThe organic layer was dried over Na2SO4
6. customevaporated
7. customto obtain crude product (0.2 g)
8. customThe crude product was purified by preparative TLC