Diisopropylethylamine → HCID 71603732, compound

HRID 630818Notes

Reaction equation

HRID 630818 reaction equation
[CH3:1][C:2]([C:9]1[N:13]2[CH:14]=[C:15]([O:18][C@H:19]3[C:28]4[C:23](=[CH:24][CH:25]=[CH:26][CH:27]=4)[C@@H:22]([NH2:29])[CH2:21][CH2:20]3)[CH:16]=[CH:17][C:12]2=[N:11][N:10]=1)([N:4]1[CH2:8][CH2:7][CH2:6][CH2:5]1)[CH3:3].CCN(C(C)C)C(C)C.ClC(Cl)(Cl)C[O:42][C:43](=O)[NH:44][C:45]1[N:46]([C:54]2[CH:59]=[CH:58][C:57]([CH3:60])=[CH:56][CH:55]=2)[N:47]=[C:48]([C:50]([CH3:53])([CH3:52])[CH3:51])[CH:49]=1>O1CCOCC1>[C:50]([C:48]1[CH:49]=[C:45]([NH:44][C:43]([NH:29][C@@H:22]2[C:23]3[C:28](=[CH:27][CH:26]=[CH:25][CH:24]=3)[C@H:19]([O:18][C:15]3[CH:16]=[CH:17][C:12]4[N:13]([C:9]([C:2]([CH3:1])([N:4]5[CH2:8][CH2:7][CH2:6][CH2:5]5)[CH3:3])=[N:10][N:11]=4)[CH:14]=3)[CH2:20][CH2:21]2)=[O:42])[N:46]([C:54]2[CH:59]=[CH:58][C:57]([CH3:60])=[CH:56][CH:55]=2)[N:47]=1)([CH3:53])([CH3:51])[CH3:52]

Participants

5

Reactant 3

HCID 81531DiisopropylethylamineHCID 99310942,2,2-Trichloroethyl 3-tert-butyl-1-P-tolyl-1H-pyrazol-5-ylcarbamateHCID 86687103HCID 86687103, compound

Product 1

HCID 71603732HCID 71603732, compound

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Conditions

Temperature
60 °C

Procedure

To a solution of Intermediate 80c (180 mg, 0.46 mmol) in 1,4-dioxane (5.00 mL) was added DIPEA (160 μL, 0.92 mmol) and (5-tert-butyl-2-p-tolyl-2H-pyrazol-3-yl)-carbamic acid 2,2,2-trichloro-ethyl ester (Synthetic Communications, 2009, 39, 3999-4009, which is incorporated herein by reference in its entirety; 185 mg, 0.46 mmol). The reaction was heated to 60° C. overnight then cooled and partitioned between EtOAc and water. The aqueous layer was then extracted with EtOAc (3×). The combined organic layers were washed with brine, dried (MgSO4), filtered and evaporated in vacuo. The residue was purified by FCC, using 0-8% MeOH in DCM. Further purification by HPLC (C18 X-select column, 10-98% MeCN in H2O, 0.1% HCO2H) gave the title compound as a white powder after freeze-drying (58 mg, 20%). LCMS (Method 5): Rt 3.84 min, m/z 647.2 [MH+]. 1H NMR (400 MHz, d4-MeOD): 1.30 (9H, s), 1.60 (6H, s), 1.70-1.76 (4H, m), 1.86-2.06 (2H, m), 2.11 (1H, m), 2.20 (1H, m), 2.38 (3H, s), 2.45-2.52 (2H, m), 2.55-2.62 (2H, m), 4.89 (1H, dd, J 5.6, 8.9), 5.29 (1H, t, J 4.2), 6.33 (1H, s), 7.20-7.36 (9H, m), 7.62 (1H, d, J 9.9), 8.77 (1H, d, J 2.0).

Workup

  1. temperaturethen cooled
  2. custompartitioned between EtOAc and water
  3. extractionThe aqueous layer was then extracted with EtOAc (3×)
  4. washThe combined organic layers were washed with brine
  5. dry with materialdried (MgSO4)
  6. filtrationfiltered
  7. customevaporated in vacuo
  8. customThe residue was purified by FCC
  9. customFurther purification by HPLC (C18 X-select column, 10-98% MeCN in H2O, 0.1% HCO2H)

Sources & evidence

ORD record
ord-9f03dd7c588642b4815a789501d89518
Source dataset
uspto-grants-2016_04
Patent number
US09315503B2

Reaction notes

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