Triethylamine → HCID 68283890, compound

HRID 2408737Notes

Reaction equation

HRID 2408737 reaction equation
[CH3:1][N:2]1[CH2:27][CH2:26][C:5]2[N:6]([CH2:14][CH:15]([C:20]3[CH:25]=[CH:24][N:23]=[CH:22][CH:21]=3)[CH2:16][C:17](O)=[O:18])[C:7]3[CH:8]=[CH:9][C:10]([CH3:13])=[CH:11][C:12]=3[C:4]=2[CH2:3]1.[Cl-].[NH4+].C1C[N:33]([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.C(N(CC)CC)C>C(Cl)Cl>[CH3:1][N:2]1[CH2:27][CH2:26][C:5]2[N:6]([CH2:14][CH:15]([C:20]3[CH:21]=[CH:22][N:23]=[CH:24][CH:25]=3)[CH2:16][C:17]([NH2:33])=[O:18])[C:7]3[CH:8]=[CH:9][C:10]([CH3:13])=[CH:11][C:12]=3[C:4]=2[CH2:3]1

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 25517Ammonium ChlorideHCID 2724699PyBOPHCID 50942886HCID 50942886, compound

Product 1

HCID 68283890HCID 68283890, compoundYield 25.8%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

4-(2,8-Dimethyl-1,2,3,4-tetrahydro-pyrido[4,3-b]indol-5-yl)-3-pyridin-4-yl-butyric acid (175 mg, 0.482 mmol) was dissolved in DCM (5 mL), ammonium chloride (51 mg, 0.964 mmol), PYBOP (300 mg, 0.578 mmol) and triethylamine (0.69 mL, 4.82 mmol) were added and the reaction mixture was stirred at RT for 4 h. The reaction progress was monitored by LC-MS. After completion of the reaction, the reaction mixture was concentrated and the crude product was purified by reverse phase chromatography to obtain 45 mg of 4-(2,8-dimethyl-1,2,3,4-tetrahydro-pyrido[4,3-b]indol-5-yl)-3-pyridin-4-yl-butyramide as the TFA salt. 1H NMR (CD3OD, TFA salt) δ (ppm): 8.6 (d, 2H), 7.8 (d, 2H), 7.25 (s, 1H), 7.15 (d, 1H), 6.9 (d, 1H), 4.63 (t, 1H), 4.5 (m, 1H), 4.4 (m, 1H), 4.3 (dd, 1H), 4.0 (m, 1H), 3.85 (m, 1H), 3.6 (m, 1H), 3.2 (m, 1H), 3.1 (s, 3H), 3.0 (m, 1H), 2.9 (m, 2H), 2.4 (d, 3H). Separation by chiral HPLC provides enantiomers II-229a-b.

Workup

  1. customAfter completion of the reaction
  2. concentrationthe reaction mixture was concentrated
  3. customthe crude product was purified by reverse phase chromatography

Sources & evidence

ORD record
ord-61fbda6ca9ed4aceb620f65a20196c0d
Source dataset
uspto-grants-2014_08
Patent number
US08815843B2

Reaction notes

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