反应详情

Trifluoroacetic Acid (5 ml) added to a mix lure of Water (0.5 ml) and 7-((3aS,4R,6R,6aR)-6-(((3-(2-(5-(tert-butyl)-1H-benzo[d]imidazol-2-yl)ethyl)cyclobutyl)(methyl)amino)methyl)-2,2-dimethyltetrahydro-3aH-cyclopenta[d][1,3]dioxol-4-yl)-N-(2,4-dimethoxybenzyl)-7H-pyrrolo[2,3-d]pyrimidin-4-amine (0.20 g, 0.28 mmol) at RT. The reaction was allowed to proceed overnight upon which it was quenched with Triethylsilane (0.088 ml, 0.55 mmol). The volatiles were removed in vacuo and resulting residue was partitioned between saturated NaHCO3 and DCM/MeOH (10:1). Aqueous extracted 3× more with DCM/MeOH (10:1) and combined organics were dried over MgSO4, filtered, concentrated and purified by flash chromatography (DCM/7N NH3 in MeOH 87:13) to give the desired product as an off-white foam (0.060 g). MS (ESI+) for C30H41N7O2 m/z 532.3 [M+H]+; MS (ESI−) for C30H41N7O2 m/z 530.4 [M−H]−; HPLC purity >94% (ret. time, 2.723 min.) 1H NMR (400 MHz, d4-MeOH) δH 8.079 (s, 1H), 7.500 (s, 1H), 7.418-7.398 (m, 1H), 7.310-7.307 (m, 1H), 7.230-7.216 (m, 1H), 6.619-6.610 (m, 1H), 4.355-4.316 (m, 1H), 3.926-3.887 (m, 1H), 3.088-3.017 (m, 0.5H (methine of trans isomer)), 2.879-2.809 (m, 2H), 2.745-2.685 (m, 0.5H (methine of cis isomer), 2.532-2.512 (m, 1H), 2.446-2.373 (m, 2H), 2.294-2.276 (m, 2H), 2.202-2.012 (m, 5H), 1.685-1.603 (m, 1H), 1.545-1.504 (m, 1H), 1.383 (s, 1H). Retention time: 2.723 mins HPLC Conditions: Agilent Zorbax Exlipse XDB-C18 column, 4.6×50 mm (1.8 um packing), Solvent A—Water (0.1% TFA), Solvent B—Acetonitrile (0.07% TFA) 6 min gradient from 5 to 95% B; 1 min hold; then recycle.

1. customThe volatiles were removed in vacuo
2. customresulting residue
3. customwas partitioned between saturated NaHCO3 and DCM/MeOH (10:1)
4. extractionAqueous extracted 3× more with DCM/MeOH (10:1)
5. dry with materialcombined organics were dried over MgSO4
6. filtrationfiltered
7. concentrationconcentrated
8. custompurified by flash chromatography (DCM/7N NH3 in MeOH 87:13)