反应详情

7-[(3aS,4R,6R,6aR)-6-{[({3-[(5-tert-butyl-1-{[2-(trimethylsilyl)ethoxy]methyl}-1H-1,3-benzodiazol-2-yl)methyl]cyclobutyl}methyl)(propan-2-yl)amino]methyl}-2,2-dimethyl-hexahydrocyclopenta[d][1,3]dioxol-4-yl]-7H-pyrrolo[2,3-d]pyrimidin-4-amine (58.7 mg, 0.08 mmol) was dissolved in conc. HCl solution (5 ml) and methanol (5 ml) and heated to 40° C. for 2 h. The reaction mixture was concentrated under reduced pressure, and the residue partitioned between sat. NaHCO3(aq) (10 ml) and EtOAc (10 ml). The layers were separated and the aqueous layer was extracted with EtOAc (2×10 ml), the combined organics were then dried (MgSO4) and concentrated. The crude material was purified by prep TLC, eluting with 10% 2M NH3 in MeOH in DCM to afford the title compound (24.7 mg, 55%) as a colourless gum: MS (ESI+) for C32H45N7O2 m/z 560.4 [M+H]+; LC purity 100% (UV), (ret. time, 5.10 min); 1H NMR (500 MHz, Acetone) δH 8.12 (s, 1H), 7.30-7.60 (m, 2H), 7.13-7.28 (m, 2H), 6.54 (d, J=3.5 Hz, 1H), 6.33 (br. s., 1H), 4.85-5.07 (m, 1H), 4.36 (t, J=6.2 Hz, 1H), 4.08 (t, J=5.2 Hz, 1H), 3.01 (d, J=7.7 Hz, 1H), 2.93 (d, J=7.4 Hz, 2H), 2.78 (br. s., 2H), 2.59-2.73 (m, 2H), 2.15-2.56 (m, 7H), 1.68 (dt, J=12.4, 9.7 Hz, 1H), 1.44-1.62 (m, 2H), 1.35 (s, 9H), 0.90-1.07 (m, 6 II).

1. concentrationThe reaction mixture was concentrated under reduced pressure
2. customthe residue partitioned between sat. NaHCO3(aq) (10 ml) and EtOAc (10 ml)
3. customThe layers were separated
4. extractionthe aqueous layer was extracted with EtOAc (2×10 ml)
5. dry with materialthe combined organics were then dried (MgSO4)
6. concentrationconcentrated
7. customThe crude material was purified by prep TLC
8. washeluting with 10% 2M NH3 in MeOH in DCM