(2R)-2-hydroxypropanamide → HCID 178462237, compound

HRID 711936Notes

Reaction equation

HRID 711936 reaction equation
[OH:1][C@H:2]([CH3:6])[C:3]([NH2:5])=O.F[B-](F)(F)F.C([O+](CC)CC)C.N[C:20]1[C:21]([NH:29][C@H:30]2[CH2:35][CH2:34][C@H:33]([CH2:36][C:37]#[N:38])[CH2:32][CH2:31]2)=[C:22]2[S:28][CH:27]=[CH:26][C:23]2=[N:24][CH:25]=1>O1CCCC1.C(O)C>[OH:1][C@@H:2]([C:3]1[N:29]([C@H:30]2[CH2:31][CH2:32][C@H:33]([CH2:36][C:37]#[N:38])[CH2:34][CH2:35]2)[C:21]2=[C:22]3[S:28][CH:27]=[CH:26][C:23]3=[N:24][CH:25]=[C:20]2[N:5]=1)[CH3:6]

Participants

6

Reactant 3

HCID 1530236(2R)-2-hydroxypropanamideHCID 2723982Triethyloxonium tetrafluoroborateHCID 178511084HCID 178511084, compound

Product 1

HCID 178462237HCID 178462237, compoundYield 44.1%

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 8028TetrahydrofuranSolvent

Procedure

A mixture of (2R)-2-hydroxypropanamide (0.12 g, 1.3 mmol) and triethyloxonium tetrafluoroborate (0.25 g, 1.3 mmol) in tetrahydrofuran (2 mL) became a solution after stirred for 15 min. After another 45 min, this solution was added to a mixture of {trans-4-[(6-aminothieno[3,2-b]pyridin-7-yl)amino]cyclohexyl}acetonitrile (124 mg, 0.433 mmol) in ethanol (3.4 mL) and the resultant mixture was heated at reflux for 2 h. The crude mixture was purified on RP-HPLC (XBridge C18 column, eluting with a gradient of acetonitrile/water containing 0.1% ammonium hydroxide, at flow rate of 30 mL/min) to give the desired product (65 mg, 44%). LCMS calculated for C18H21N4OS (M+H)+: m/z=341.1. Found: 341.1. 1H NMR (DMSO-d6, 400 MHz) δ 8.98 (1H, s), 8.00 (1H, d, J=5.2 Hz), 7.66 (1H, d, J=5.2 Hz), 5.86 (1H, d, J=6.4 Hz), 5.19 (1H, m), 4.92 (1H, m), 2.61 (2H, d, J=6.0 Hz), 2.43 (2H, m), 2.01 (5H, m), 1.64 (3H, d, J=6.4 Hz), 1.40 (2H, m) ppm.

Workup

  1. waitAfter another 45 min
  2. temperatureat reflux for 2 h
  3. customThe crude mixture was purified on RP-HPLC (XBridge C18 column
  4. washeluting with a gradient of acetonitrile/water containing 0.1% ammonium hydroxide, at flow rate of 30 mL/min)

Sources & evidence

ORD record
ord-e011ac7e5e1f428baf1e1720cd6a339d
Source dataset
uspto-grants-2015_11
Patent number
US09181271B2

Reaction notes

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