Dimethylcarbamoyl Chloride → Trifluoroacetic acid

HRID 713325Notes

Reaction equation

HRID 713325 reaction equation
[CH3:1][N:2]([CH3:6])[C:3](Cl)=[O:4].[OH:7][C:8]([C:10]([F:13])([F:12])[F:11])=[O:9].[F:14][C:15]1[CH:41]=[C:40]([F:42])[CH:39]=[CH:38][C:16]=1[O:17][CH:18]1[CH2:23][CH2:22][N:21]([C:24]2[N:29]=[C:28]3[CH2:30][NH:31][CH2:32][CH2:33][C:27]3=[N:26][C:25]=2[NH:34][CH:35]([CH3:37])[CH3:36])[CH2:20][CH2:19]1.C(N(CC)CC)C>C(Cl)Cl>[F:14][C:15]1[CH:41]=[C:40]([F:42])[CH:39]=[CH:38][C:16]=1[O:17][CH:18]1[CH2:19][CH2:20][N:21]([C:24]2[N:29]=[C:28]3[CH2:30][N:31]([C:3]([N:2]([CH3:6])[CH3:1])=[O:4])[CH2:32][CH2:33][C:27]3=[N:26][C:25]=2[NH:34][CH:35]([CH3:37])[CH3:36])[CH2:22][CH2:23]1.[C:8]([OH:9])([C:10]([F:13])([F:12])[F:11])=[O:7]

Participants

6

Reactant 3

HCID 6598Dimethylcarbamoyl ChlorideHCID 8471TriethylamineHCID 1317340273-(4-(2,4-difluorophenoxy)piperidin-1-yl)-N-isopropyl-5,6,7,8-tetrahydropyrido[3,4-b]pyrazin-2-amine TFA salt

Product 2

HCID 6422Trifluoroacetic acidYield 324.5%HCID 118159332HCID 118159332, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Dimethylcarbamic chloride (6.4 mg, 0.059 mmol) was added to a solution of 3-(4-(2,4-difluorophenoxyl)piperidin-1-yl)-N-isopropyl-5,6,7,8-tetrahydropyrido[3,4-b]pyrazin-2-amine TFA salt (15.3 mg, 0.030 mmol) and triethylamine (12 μL, 0.089 mmol) in DCM (300 μL) at rt. After 1 h, the mixture was purified by HPLC Method A to give the title compound as a TFA salt (11.1 mg, 63.8%) as a yellow film. 1H NMR (400 MHz, methanol-d4) δ ppm 1.31 (d, J=6.3 Hz, 6H), 1.91-2.01 (m, 2H), 2.09-2.18 (m, 2H), 2.86 (t, J=5.7 Hz, 2H), 2.90 (s, 6H), 3.03-3.11 (m, 2H), 3.39-3.47 (m, 2H), 3.55 (t, J=5.7 Hz, 2H), 4.14 (quin, J=6.4 Hz, 1H), 4.27 (s, 2H), 4.49 (tt, J=7.3, 3.6 Hz, 1H), 6.84-6.91 (m, 1H), 6.99 (ddd, J=11.2, 8.5, 3.0 Hz, 1H), 7.18 (td, J=9.2, 5.6 Hz, 1H); ESI-MS m/z [M+H]+ 475.4.

Workup

  1. customthe mixture was purified by HPLC Method A

Sources & evidence

ORD record
ord-35b6e2ec4e9b43838b5ace0cce7ea0e6
Source dataset
uspto-grants-2015_11
Patent number
US09181249B2

Reaction notes

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