1-Hydroxybenzotriazole → HCID 69949949, compound

HRID 1397243Notes

Reaction equation

HRID 1397243 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[N:9]=[C:10]([C:13]([CH3:17])([CH3:16])[CH2:14][NH2:15])[S:11][CH:12]=2)=[CH:4][CH:3]=1.[F:18][C:19]([F:35])([F:34])[C:20]1[O:24][N:23]=[C:22]([C:25]2[CH:26]=[C:27]([CH:31]=[CH:32][CH:33]=2)[C:28](O)=[O:29])[N:21]=1.Cl.CN(C)CCCN=C=NCC.ON1C2C=CC=CC=2N=N1.C(N(C(C)C)CC)(C)C>ClCCl>[F:1][C:2]1[CH:3]=[CH:4][C:5]([C:8]2[N:9]=[C:10]([C:13]([CH3:17])([CH3:16])[CH2:14][NH:15][C:28](=[O:29])[C:27]3[CH:31]=[CH:32][CH:33]=[C:25]([C:22]4[N:21]=[C:20]([C:19]([F:35])([F:34])[F:18])[O:24][N:23]=4)[CH:26]=3)[S:11][CH:12]=2)=[CH:6][CH:7]=1

Participants

7

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 251808543-(5-(Trifluoromethyl)-1,2,4-oxadiazol-3-yl)benzoic acidHCID 67324294HCID 67324294, compound

Product 1

HCID 69949949HCID 69949949, compoundYield 60%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

2-(4-(4-Fluorophenyl)thiazol-2-yl)-2-methylpropan-1-amine (140 mg, 0.56 mmol), 3-(5-(trifluoromethyl)-1,2,4-oxadiazol-3-yl)benzoic acid (144.37 mg, 0.56 mmol), N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (EDCI) (214.42 mg, 1.12 mmol), and 1-hydroxybenzotriazole (HOBt) (120.91 mg, 0.89 mmol) were dissolved in dichloromethane (3 mL) at room temperature. Diisopropylethylamine (DIEA) (0.39 mL, 2.24 mmol) was then introduced at room temperature and the reaction mixture was stirred at room temperature for 2 h. The reaction mixture was diluted with dichloromethane (60 mL) and washed with water (1×20 mL) and brine (1×20 mL). The organic layer was then dried over anhydrous sodium sulfate and concentrated under reduced pressure to give the crude product. The crude product was then purified on Combiflash ISCO (0-30% Ethyl Acetate:Hexanes) to give the desired product (164 mg, 60% yield). 1H NMR (CDCl3) δ 8.52 (1H, t), 8.22 (1H, dt), 8.12 (1H, t), 8.03 (1H, dt), 7.85-7.81 (2H, m), 7.57 (1H, d), 7.35 (1H, s), 7.05-7.00 (2H, m), 3.80 (2H, d, J=4 Hz), 1.55 (6H, s); MS (ESI) m/z: Calculated for C23H18F4N4O2S: 490.11. found: 491.1 (M+H)+.

Workup

  1. washwashed with water (1×20 mL) and brine (1×20 mL)
  2. dry with materialThe organic layer was then dried over anhydrous sodium sulfate
  3. concentrationconcentrated under reduced pressure
  4. customto give the crude product
  5. customThe crude product was then purified on Combiflash ISCO (0-30% Ethyl Acetate:Hexanes)

Sources & evidence

ORD record
ord-bd9b9b9155d744689beb2729abbb4c63
Source dataset
uspto-grants-2014_12
Patent number
US08901156B2

Reaction notes

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