Cyclobutylamine → 2-tert-Butyl-N-cyclobutyl-1-(tetrahydro-2H-pyran-4-ylmethyl)-1H-benzimidazole-5-sulfonamide

HRID 1435414Notes

Reaction equation

HRID 1435414 reaction equation
[C:1]([C:5]1[N:9]([CH2:10][CH:11]2[CH2:16][CH2:15][O:14][CH2:13][CH2:12]2)[C:8]2[CH:17]=[CH:18][C:19]([S:21](Cl)(=[O:23])=[O:22])=[CH:20][C:7]=2[N:6]=1)([CH3:4])([CH3:3])[CH3:2].[CH:25]1([NH2:29])[CH2:28][CH2:27][CH2:26]1>CN(C1C=CN=CC=1)C.CC#N>[C:1]([C:5]1[N:9]([CH2:10][CH:11]2[CH2:16][CH2:15][O:14][CH2:13][CH2:12]2)[C:8]2[CH:17]=[CH:18][C:19]([S:21]([NH:29][CH:25]3[CH2:28][CH2:27][CH2:26]3)(=[O:23])=[O:22])=[CH:20][C:7]=2[N:6]=1)([CH3:4])([CH3:3])[CH3:2]

Participants

5

Reactant 2

HCID 75645CyclobutylamineHCID 579372982-tert-Butyl-1-(tetrahydro-2H-pyran-4-ylmethyl)-1H-benzimidazole-5-sulfonyl chloride

Product 1

HCID 236593022-tert-Butyl-N-cyclobutyl-1-(tetrahydro-2H-pyran-4-ylmethyl)-1H-benzimidazole-5-sulfonamide

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6342AcetonitrileSolvent

Procedure

Following the same procedure in Example 1, Step A, using 2-tert-butyl-1-(tetrahydro-2H-pyran-4-ylmethyl)-1H-benzimidazole-5-sulfonyl chloride (76 mg, 0.20 mmol), cyclobutylamine (43 uL, 36 mg, 0.50 mmol) and DMAP (82 mg, 0.67 mmol) in MeCN (5 mL). The crude product was purified by MPLC using Hex/EtOAc (1:2) on silica gel to give 35 mg (42% yield) of a white solid as the title compound. 1H NMR (400 MHz, METHANOL-D4) δ 1.48-1.66 (m, 6 H), 1.68 (s, 9 H), 1.72-1.87 (m, 2 H), 1.95-2.08 (m, 2 H), 2.28-2.50 (m, 1 H), 3.31-3.41 (m, 2 H), 3.68-3.83 (m, 1 H), 3.90-3.99 (m, 2 H), 4.53 (d, J=7.62 Hz, 2 H), 7.96 (dd, J=8.80, 1.6 Hz, 1 H), 8.04 (d, J=9.0 Hz, 1 H), 8.19 (d, J=1.17 Hz, 1 H); MS (ESI) (M+H)+=406.0; Anal. Calcd for C21H31N3O3S+1.20 TFA+0.60 EtOAc+0.2H2O (598.86): C, 51.75; H, 6.29; N, 7.02. Found: C, 51.70; H, 6.25; N, 7.03.

Workup

  1. customThe crude product was purified by MPLC

Sources & evidence

ORD record
ord-bb44fd3c496c4aefbb388063c50321ec
Source dataset
uspto-grants-2009_11
Patent number
US07615642B2

Reaction notes

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