Triethylamine → Temanogrel

HRID 1626231Notes

Reaction equation

HRID 1626231 reaction equation
[CH3:1][N:2]1[C:6]([C:7]2[CH:8]=[C:9]([NH2:22])[CH:10]=[CH:11][C:12]=2[O:13][CH2:14][CH2:15][N:16]2[CH2:21][CH2:20][O:19][CH2:18][CH2:17]2)=[CH:5][CH:4]=[N:3]1.[CH3:23][O:24][C:25]1[CH:26]=[C:27]([CH:31]=[CH:32][CH:33]=1)[C:28](Cl)=[O:29].C(N(CC)CC)C>C1COCC1>[CH3:23][O:24][C:25]1[CH:26]=[C:27]([CH:31]=[CH:32][CH:33]=1)[C:28]([NH:22][C:9]1[CH:10]=[CH:11][C:12]([O:13][CH2:14][CH2:15][N:16]2[CH2:21][CH2:20][O:19][CH2:18][CH2:17]2)=[C:7]([C:6]2[N:2]([CH3:1])[N:3]=[CH:4][CH:5]=2)[CH:8]=1)=[O:29]

Participants

5

Reactant 3

HCID 8471TriethylamineHCID 74374m-Anisoyl chlorideHCID 46832486HCID 46832486, compound

Product 1

HCID 11604525TemanogrelYield 51%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

A mixture of 3-(2-methyl-2H-pyrazol-3-yl)-4-(2-morpholin-4-yl-ethoxy)-phenylamine (120 mg, 0.40 mmole), 3-methoxy-benzoyl chloride (81 mg, 0.48 mmole), and triethylamine (0.1 mL, 0.79 mmole) in 5 mL THF was stirred at room temperature for 10 minutes. The mixture was purified by HPLC to give the title compound as a white solid (TFA salt, 88 mg, 51%). 1H NMR (Acetone-d6, 400 MHz) 2.99-3.21 (m, 2H), 3.22-3.45 (m, 2H), 3.66 (t, J=4.80 Hz, 2H), 3.75 (s, 3H), 3.85 (s, 3H), 3.79-3.89 (m, 4H), 4.58 (t, J=4.80 Hz, 2H), 6.29 (d, J=2.02 Hz 1H), 7.13 (dd, J=8.34, 2.53 Hz, 1H), 7.22 (d, J=8.84 Hz, 1H), 7.42 (t, J=7.83 Hz, 1H), 7.47 (d, J=1.77 Hz, 1H), 7.52 (t, J=1.77 Hz, 1H), 7.56 (d, J=7.07 Hz, 1H), 7.80-7.83 (m, 1H), 7.91-7.96 (m, 1H), 9.54 (s, NH). Exact mass calculated for C24H28N4O4 436.2, found 437.5 (MH+).

Workup

  1. customThe mixture was purified by HPLC

Sources & evidence

ORD record
ord-871423a2300f495880aeab89d1e9b63f
Source dataset
uspto-grants-2014_07
Patent number
US08785441B2

Reaction notes

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