Diisopropylethylamine → N-{4-[(3S)-3-Aminopiperidin-1-yl]-2,3-dihydrofuro[2,3-b]pyridin-5-yl}-2-(2,6-difluorophenyl)-1,3-thiazole-4-carboxamide

HRID 1499428Notes

Reaction equation

HRID 1499428 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[C:4]([F:8])[C:3]=1[C:9]1[S:10][CH:11]=[C:12]([C:14]([OH:16])=O)[N:13]=1.[NH2:17][C:18]1[C:19]([N:27]2[CH2:32][CH2:31][CH2:30][C@H:29]([NH:33]C(=O)OC(C)(C)C)[CH2:28]2)=[C:20]2[CH2:26][CH2:25][O:24][C:21]2=[N:22][CH:23]=1.CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.CCN(C(C)C)C(C)C>CN(C=O)C>[NH2:33][C@H:29]1[CH2:30][CH2:31][CH2:32][N:27]([C:19]2[C:18]([NH:17][C:14]([C:12]3[N:13]=[C:9]([C:3]4[C:4]([F:8])=[CH:5][CH:6]=[CH:7][C:2]=4[F:1])[S:10][CH:11]=3)=[O:16])=[CH:23][N:22]=[C:21]3[O:24][CH2:25][CH2:26][C:20]=23)[CH2:28]1

Participants

6

Reactant 4

HCID 81531DiisopropylethylamineHCID 9886157Methanaminium, N-((dimethylamino)(3H-1,2,3-triazolo(4,5-b)pyridin-3-yloxy)methylene)-N-methyl-, hexafluorophosphate(1-) (1:1)HCID 242784542-(2,6-Difluorophenyl)-1,3-thiazole-4-carboxylic acidHCID 86726677tert-Butyl [(3S)-1-(5-amino-2,3-dihydrofuro[2,3-b]pyridin-4-yl)piperidin-3-yl]carbamate

Product 1

HCID 86726679N-{4-[(3S)-3-Aminopiperidin-1-yl]-2,3-dihydrofuro[2,3-b]pyridin-5-yl}-2-(2,6-difluorophenyl)-1,3-thiazole-4-carboxamideYield 20.2%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a mixture of 2-(2,6-difluorophenyl)-1,3-thiazole-4-carboxylic acid (Example 2, Step 2, 14.5 mg, 0.0601 mmol), tert-butyl [(3S)-1-(5-amino-2,3-dihydrofuro[2,3-b]pyridin-4-yl)piperidin-3-yl]carbamate (19.2 mg, 0.0574 mmol) and HATU (72.5 mg, 0.191 mmol), DMF (1.50 mL) was added, followed by DIPEA (79.6 mg, 0.616 mmol). The reaction mixture was stirred at room temperature for 2 h, and then concentrated under reduced pressure. To the residue, DCM (2.0 mL) was added, followed by TFA (2.0 mL). The mixture was stirred at room temperature for 30 min., and then concentrated under reduced pressure. The resulting residue was purified using RP-HPLC (XBridge™ C18 column, eluting with a gradient of MeCN/water containing 0.15% NH4OH, at flow rate of 30 mL/min.) to afford the title compound as a white solid (5.3 mg, 20%). LCMS calc. for C22H22F2N5O2S (M+H)+: m/z=458.1. found 458.1.

Workup

  1. additionwas added
  2. concentrationconcentrated under reduced pressure
  3. additionTo the residue, DCM (2.0 mL) was added
  4. stirringThe mixture was stirred at room temperature for 30 min.
  5. concentrationconcentrated under reduced pressure
  6. customThe resulting residue was purified
  7. washeluting with a gradient of MeCN/water containing 0.15% NH4OH, at flow rate of 30 mL/min.)

Sources & evidence

ORD record
ord-ca798cd407b8442a810e45d220640fa5
Source dataset
uspto-grants-2015_12
Patent number
US09200004B2

Reaction notes

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