1-Hydroxybenzotriazole → HCID 59275403, compound

HRID 1688310Notes

Reaction equation

HRID 1688310 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[O:9][C:10]3[CH:20]=[CH:19][C:18]([C:21]4[CH:22]=[C:23]([CH:27]=[CH:28][C:29]=4[CH3:30])[C:24](O)=[O:25])=[CH:17][C:11]=3[C:12]=2[C:13](=[O:16])[NH:14][CH3:15])=[CH:4][CH:3]=1.CC1O[CH:34]=[C:35]([C:37]2([NH2:40])[CH2:39][CH2:38]2)[N:36]=1.C1C=CC2N(O)N=NC=2C=1.C[CH2:52][N:53]=[C:54]=NCCCN(C)C.Cl.C(N(C(C)C)CC)(C)C>C(Cl)Cl>[F:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[O:9][C:10]3[CH:20]=[CH:19][C:18]([C:21]4[CH:22]=[C:23]([C:24](=[O:25])[NH:40][C:37]5([C:35]6[CH:34]=[CH:52][N:53]([CH3:54])[N:36]=6)[CH2:38][CH2:39]5)[CH:27]=[CH:28][C:29]=4[CH3:30])=[CH:17][C:11]=3[C:12]=2[C:13]([NH:14][CH3:15])=[O:16])=[CH:4][CH:3]=1

Participants

7

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 592756533-(2-(4-Fluorophenyl)-3-(methylcarbamoyl)benzofuran-5-yl)-4-methylbenzoic acidHCID 67211196HCID 67211196, compound

Product 1

HCID 59275403HCID 59275403, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a mixture of 3-(2-(4-fluorophenyl)-3-(methylcarbamoyl)benzofuran-5-yl)-4-methylbenzoic acid (0.15 g, 0.37 mmol, 1 eq), 1-(2-methyloxazol-4-yl)cyclopropanamine (0.066 g, 0.47, 1.2 eq), HOBT (0.092 g, 0.68 mmol, 1.7 eq), EDC.HCl (0.14 g, 0.73 mmol, 1.8 eq) in DCM at ambient temperature under nitrogen was added Diisopropylethylamine (0.26 g, 2.2 mmol, 5.0 eq). The clear mixture was stirred at ambient temperature for 12 h. The mixture was concentrated, diluted with water and extracted with EtOAc. The organic layer is further washed with water, dried over sodium sulphate and concentrated. The product obtained was further purified by column chromatography (neutral alumina) using 0.5% Methanol/DCM as an eluent followed by preparative HPLC. Yield: 0.02 g (20%). 1H NMR (400 MHz, DMSO-d6): δ 1.10-1.13 (m, 2H), 1.21-1.24 (m, 2H), 2.29 (s, 3H), 2.33 (s, 3H), 2.81-2.82 (d, 3H, J=4.6 Hz), 7.38-7.43 (m, 4H), 7.57 (s, 1H), 7.61 (s, 1H), 7.75-7.71 (d, 1H, J=8.4 Hz), 7.80-7.81 (s and m, 2H), 7.97-8.01 (m, 2H), 8.47-8.48 (d, 1H, J=4.76 Hz), 9.1 (s, 1H). LCMS: (ES+) m/z=524.2 (M+H). LCMS Method: Chromolith SpeedROD C18 (4.6×3.0 mm-5.0 μm) Mphase A: 2% MeCN-98% H2O-10 mM NH4COOH Mphase B: 98% MeCN-2% H2O-10 mM NH4COOH Flow: 1 mL/Min

Workup

  1. concentrationThe mixture was concentrated
  2. additiondiluted with water
  3. extractionextracted with EtOAc
  4. washThe organic layer is further washed with water
  5. dry with materialdried over sodium sulphate
  6. concentrationconcentrated
  7. customThe product obtained
  8. customwas further purified by column chromatography (neutral alumina)

Sources & evidence

ORD record
ord-3cbb0da8ca714cc09dd60bbae922e013
Source dataset
uspto-grants-2012_04
Patent number
US08148382B2

Reaction notes

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