2-Methoxyethanol → 4-(Octahydro-pyrrolo[1,2-a]pyrazin-2-yl)-6,7-dihydro-5H-benzo[6,7]cyclohepta[1,2-d]pyrimidin-2-ylamine

Temperature

115 °C

The product from Example 68A (40 mg, 0.16 mmol) was treated with octahydro-pyrrolo[1,2-A]pyrazine (31 mg, 0.24 mmol), and to this was added 2-methoxyethanol (0.65 mL) and N,N-diisopropylethylamine (0.20 mL, 1.2 mmol); the reaction was heated at 115° C. for 16 hours, cooled, diluted with CH2Cl2 (25 mL) and washed with 1 M NaOH (10 mL). The aqueous layer was extracted with CH2Cl2 (15 mL). The combined organic layers were dried (MgSO4), filtered, concentrated and purified by chromatography (eluting with 2, 3.5, 5 and 10% (9:1 MeOH:saturated aqueous NH4OH) in CH2Cl2) to provide the title compound. 1H NMR (CDCl3) δ 1.43-1.57 (m, 1H), 1.71-1.94 (m, 3H), 2.13-2.29 (m, 4H), 2.30-2.45 (m, 3H), 2.66 (t, J=6.78 Hz, 2H), 2.81 (dd, J=12.21, 10.17 Hz, 1H), 3.06-3.23 (m, 3H), 3.81-3.89 (m, 1H), 3.98 (dt, J=12.29, 2.33 Hz, 1H), 4.76 (s, 2H), 7.20-7.24 (m, 1H), 7.31-7.39 (m, 2H), 7.71-7.76 (m, 1H); MS (M+H)+ m/z 336.

1. temperaturecooled
2. washwashed with 1 M NaOH (10 mL)
3. extractionThe aqueous layer was extracted with CH2Cl2 (15 mL)
4. dry with materialThe combined organic layers were dried (MgSO4)
5. filtrationfiltered
6. concentrationconcentrated
7. custompurified by chromatography (eluting with 2, 3.5, 5 and 10% (9:1 MeOH:saturated aqueous NH4OH) in CH2Cl2)

ORD record

ord-1a7c2b89c2114fe385e887592fff6ead

Source dataset

uspto-grants-2014_05

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08735411B2