反应详情

The title compound was prepared from 4-[7-(1-Acetyl-azetidin-3-yloxy)-quinazolin-4-yl]-piperidine-1-carboxylic acid tert-butyl ester (44.1 mg, 103 μmol), as synthesized in the previous step, using (4-pyrrolidin-1-yl-phenyl)-carbamic acid 4-nitro-phenyl ester hydrochloride, prepared in Example 74a, and using essentially the reaction and work-up procedure described in Example 110b. The title compound was purified by silica flash cartridge chromatography (9:1 DCM/acetone/3% DMEA eluent). The combined fractions (10 mL) were washed with 1M NaHCO3 (1×5 mL) to remove a DMEA+ impurity, and were dried (Na2SO4) and concentrated to provide the title compound (13.8 mg, 26%). 1H-NMR (400 MHz, 95:5 CDCl3/CD3OD) δ 9.13 (s, 1H), 8.16 (d, 1H), 7.31 (dd, 1H), 7.17 (m, 2H), 7.03 (d, 1H), 6.54 (m, 2H), 5.16 (m, 1H), 4.67 (ddd, 1H), 4.51 (dd, 1H), 4.32-4.23 (m, 3H), 4.15 (dd, 1H), 3.70 (tt, 1H), 3.26 (m, 4H), 3.11 (tt, 2H), 2.17-1.97 (m, 8H), 1.94 (s, 3H). LC/MS (ESI): calcd mass 514.3, found 515.3 (MH)+.

1. customas synthesized in the previous step
2. customprepared in Example 74a
3. customthe reaction
4. customThe title compound was purified by silica flash cartridge chromatography (9:1 DCM/acetone/3% DMEA eluent)
5. washThe combined fractions (10 mL) were washed with 1M NaHCO3 (1×5 mL)
6. customto remove a DMEA+ impurity
7. dry with materialwere dried (Na2SO4)
8. concentrationconcentrated