Diisopropylethylamine → 1-[4-[2-(difluoromethyl)-4-methoxybenzimidazol-1-yl]-6-morpholin-4-yl-1,3,5-triazin-2-yl]-N,N-dimethylpiperidine-4-sulfonamide

HRID 1256562Notes

Reaction equation

HRID 1256562 reaction equation
[CH3:1][N:2]([CH3:22])[S:3]([CH:6]1[CH2:11][CH2:10][N:9]([C:12](OCC2C=CC=CC=2)=O)[CH2:8][CH2:7]1)(=[O:5])=[O:4].ClC1[N:29]=[C:28]([N:30]2[CH2:35][CH2:34][O:33][CH2:32][CH2:31]2)[N:27]=[C:26]([N:36]2[C:40]3[CH:41]=[CH:42][CH:43]=[C:44]([O:45][CH3:46])[C:39]=3[N:38]=[C:37]2[CH:47]([F:49])[F:48])[N:25]=1.CCN(C(C)C)C(C)C>CO.C1COCC1.[Pd]>[F:49][CH:47]([F:48])[C:37]1[N:36]([C:26]2[N:27]=[C:28]([N:30]3[CH2:31][CH2:32][O:33][CH2:34][CH2:35]3)[N:29]=[C:12]([N:9]3[CH2:8][CH2:7][CH:6]([S:3]([N:2]([CH3:1])[CH3:22])(=[O:4])=[O:5])[CH2:11][CH2:10]3)[N:25]=2)[C:40]2[CH:41]=[CH:42][CH:43]=[C:44]([O:45][CH3:46])[C:39]=2[N:38]=1

Participants

7

Reactant 3

HCID 81531DiisopropylethylamineHCID 534881021-[4-Chloro-6-(morpholin-4-yl)-1,3,5-triazin-2-yl]-2-(difluoromethyl)-4-methoxy-1H-benzimidazoleHCID 53587548Benzyl 4-[(dimethylamino)sulfonyl]-1-piperidinecarboxylate

Product 1

HCID 469175741-[4-[2-(difluoromethyl)-4-methoxybenzimidazol-1-yl]-6-morpholin-4-yl-1,3,5-triazin-2-yl]-N,N-dimethylpiperidine-4-sulfonamideYield 86%

Reagents, catalysts & solvents 3

HCID 23938PalladiumCatalystHCID 887MethanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

The above carbamate was hydrogenated over 5% Pd on carbon in MeOH. After removal of the solvent, the residue was combined with 0.19 g (0.48 mmol) 1-[4-chloro-6-(4-morpholinyl)-1,3,5-triazin-2-yl]-2-(difluoromethyl)-4-methoxy-1H-benzimidazole (Example 2) and DIPEA in THF. The mixture was heated under reflux for 30 min and the solvent was removed. After dilution with water, the resulting solid was collected and dried. Chromatography on silica, eluting with CH2Cl2/EtOAc (93:7), gave 0.227 g (86% yield) of 1-[4-[2-(difluoromethyl)-4-methoxy-1H-benzimidazol-1-yl]-6-(4-morpholinyl)-1,3,5-triazin-2-yl]-N,N-dimethyl-4-piperidinesulfonamide: mp (MeOH) 260-264° C.; 1H NMR (CDCl3) δ 7.88 (dd, J=8.4, 0.6 Hz, 1H), 7.46 (t, JHF=53.5 Hz, 1H), 7.35 (t, J=7.7 Hz, 1H), 6.81 (d, J=7.7 Hz, 1H), 4.91 (br d, J=13.5 Hz, 2H), 4.05 (s, 3H), 3.88 (m, 4H), 3.78 (m, 4H), 3.27 (tt, J=11.8, 3.8 Hz, 1H), 2.95 (s, 6H), 2.17 (dd, J=12.7, 2.2 Hz, 2H), 1.85 (dq, J=12.6, 4.2 Hz, 2H); Anal. Calcd. for C23H30F2N8O4S: C, 50.0; H, 5.5; N, 20.3. Found: C, 49.9; H, 5.5; N, 20.4%.

Workup

  1. customAfter removal of the solvent
  2. temperatureThe mixture was heated
  3. temperatureunder reflux for 30 min
  4. customthe solvent was removed
  5. customAfter dilution with water, the resulting solid was collected
  6. customdried
  7. washChromatography on silica, eluting with CH2Cl2/EtOAc (93:7)

Sources & evidence

ORD record
ord-ac17e610ede74c4188a9ef74df97a40d
Source dataset
uspto-grants-2013_06
Patent number
US08461158B2

Reaction notes

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