反应详情

温度

180 °C

A mixture of (rac)-cis-3-(3-fluoropyrazin-2-yl)cyclohexanol (140 mg, 0.713 mmol), (1H-benzo[d]imidazol-2-yl)(4-hydroxyphenyl)methanone (340 mg, 1.427 mmol), and cesium carbonate (465 mg, 1.427 mmol) in NMP (1.8 ml) was heated in a Biotage™ microwave reactor at 180° C. for 45 min. The mixture was partitioned between H2O(10 ml) and CH2Cl2 (20 ml), the layers were separated, and the aqueous layer was extracted with CH2Cl2 (3×20 ml). The combined organic layers were dried (MgSO4), concentrated under reduced pressure, and the resulting brown oil was purified by reversed phase HPLC (Gilson Gemini-NX 10u C18 110A, 100×50.0 mm, 10% to 95% H2O/MeCN, 0.1% TFA). The product containing fractions were combined, neutralized by the addition of solid Na2CO3, and extracted with CH2Cl2 (3×20 mL). The combined organic layers were dried (MgSO4) and concentrated under reduced pressure to deliver (rac)-cis-(1H-benzo[d]imidazol-2-yl)(4-(3-(3-hydroxycyclohexyl)pyrazin-2-yloxy)phenyl)methanone as a brown foam. MS (ESI, pos. ion) m/z: 415.0 (M+1). IC50 (uM) +++++.

1. customThe mixture was partitioned between H2O(10 ml) and CH2Cl2 (20 ml)
2. customthe layers were separated
3. extractionthe aqueous layer was extracted with CH2Cl2 (3×20 ml)
4. dry with materialThe combined organic layers were dried (MgSO4)
5. concentrationconcentrated under reduced pressure
6. customthe resulting brown oil was purified by reversed phase HPLC (Gilson Gemini-NX 10u C18 110A, 100×50.0 mm, 10% to 95% H2O/MeCN, 0.1% TFA)
7. additionThe product containing fractions
8. additionneutralized by the addition of solid Na2CO3
9. extractionextracted with CH2Cl2 (3×20 mL)
10. dry with materialThe combined organic layers were dried (MgSO4)
11. concentrationconcentrated under reduced pressure