Diisopropylethylamine → N-Methyl-N-[1-(tetrahydro-2H-pyran-4-ylmethyl)-2-(trifluoromethyl)-1H-benzimidazol-5-yl]cyclopropanesulfonamide

HRID 1987206Notes

Reaction equation

HRID 1987206 reaction equation
[CH:1]1([S:4](Cl)(=[O:6])=[O:5])[CH2:3][CH2:2]1.[CH3:8][NH:9][C:10]1[CH:29]=[CH:28][C:13]2[N:14]([CH2:21][CH:22]3[CH2:27][CH2:26][O:25][CH2:24][CH2:23]3)[C:15]([C:17]([F:20])([F:19])[F:18])=[N:16][C:12]=2[CH:11]=1.CCN(C(C)C)C(C)C>CN(C1C=CN=CC=1)C.C(Cl)Cl>[CH3:8][N:9]([C:10]1[CH:29]=[CH:28][C:13]2[N:14]([CH2:21][CH:22]3[CH2:27][CH2:26][O:25][CH2:24][CH2:23]3)[C:15]([C:17]([F:18])([F:19])[F:20])=[N:16][C:12]=2[CH:11]=1)[S:4]([CH:1]1[CH2:3][CH2:2]1)(=[O:6])=[O:5]

Participants

6

Reactant 3

HCID 81531DiisopropylethylamineHCID 2760919Cyclopropanesulfonyl chlorideHCID 57441079HCID 57441079, compound

Product 1

HCID 57723220N-Methyl-N-[1-(tetrahydro-2H-pyran-4-ylmethyl)-2-(trifluoromethyl)-1H-benzimidazol-5-yl]cyclopropanesulfonamideYield 97%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

Following the procedure in Example 5, using cyclopropanesulfonyl chloride (34 mg, 0.24 mmol), N-methyl-1-(tetrahydro-2H-pyran-4-ylmethyl)-2-(trifluoromethyl)-1H-benzimidazol-5-amine (63 mg, 0.20 mmol) (for preparation, see the step G in example 1), DIPEA (49 uL, 36 mg, 0.28 mmol) and DMAP (5 mg, 0.04 mmol) in DCM (6 mL) at 0° C. The crude product was purified by MPLC using Hex/EtOAc (1:1) on silica gel to give 81 mg (97%) of a white solid as the title compound. 1HNMR (400 MHz, METHANOL-D4): δ 0.85-0.92 (m, 2 H), 0.93-1.01 (m, 2 H), 1.37-1.52 (m, 4 H), 2.18-2.31 (m, 1 H), 2.55-2.65 (m, 1 H), 3.30-3.36 (m, 2 H), 3.38 (s, 3 H), 3.86-3.95 (m, 2 H), 4.32 (d, J=7.62 Hz, 2 H), 7.58 (dd, J=8.89, 2.05 Hz, 1 H), 7.76 (d, J=8.79 Hz, 1 H) 7.86 (d, J=1.95 Hz, 1 H). MS (ESI) (M+H)+=418.0. Anal. Calcd for C18H22F3N3O3S+0.10 H2O+0.20 CH3OH (425.66): C, 51.36; H, 5.45; N, 9.87. Found: C, 51.39; H, 5.49; N, 9.92.

Workup

  1. customfor preparation
  2. customat 0° C
  3. customThe crude product was purified by MPLC

Sources & evidence

ORD record
ord-e973515af8d740e7b055a8355903d3aa
Source dataset
uspto-grants-2009_06
Patent number
US07550495B2

Reaction notes

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