1-Hydroxybenzotriazole → HCID 59275245, compound

HRID 555170Notes

Reaction equation

HRID 555170 reaction equation
[CH2:1]([O:8][C:9]1[CH:10]=[C:11]([CH:15]=[C:16]([C:19]2[CH:20]=[CH:21][C:22]3[O:26][C:25]([C:27]4[CH:32]=[CH:31][C:30]([F:33])=[CH:29][CH:28]=4)=[C:24]([C:34](=[O:37])[NH:35][CH3:36])[C:23]=3[CH:38]=2)[C:17]=1[CH3:18])[C:12](O)=[O:13])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[N:39]1[CH:44]=[CH:43][CH:42]=[CH:41][C:40]=1[C:45]1([NH2:48])[CH2:47][CH2:46]1.C1C=CC2N(O)N=NC=2C=1.CCN=C=NCCCN(C)C.Cl.C(N(C(C)C)CC)(C)C>C(Cl)Cl>[CH2:1]([O:8][C:9]1[C:17]([CH3:18])=[C:16]([C:19]2[CH:20]=[CH:21][C:22]3[O:26][C:25]([C:27]4[CH:32]=[CH:31][C:30]([F:33])=[CH:29][CH:28]=4)=[C:24]([C:34]([NH:35][CH3:36])=[O:37])[C:23]=3[CH:38]=2)[CH:15]=[C:11]([C:12](=[O:13])[NH:48][C:45]2([C:40]3[CH:41]=[CH:42][CH:43]=[CH:44][N:39]=3)[CH2:47][CH2:46]2)[CH:10]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

7

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 111054091-(Pyridin-2-yl)cyclopropanamineHCID 59275775HCID 59275775, compound

Product 1

HCID 59275245HCID 59275245, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a mixture of 3-(benzyloxy)-5-(2-(4-fluorophenyl)-3-(methylcarbamoyl)benzofuran-5-yl)-4-methylbenzoic acid (0.2 g, 0.40 mmol, 1 eq), 1-(pyridin-2-yl)cyclopropanamine (0.064 g, 0.47 mmol, 1.2 eq) (60% purity), HOBT (0.68 g, 0.012 mmol, 1.7 eq), EDC.HCl (0.064 g, 0.72 mmol, 1.8 eq) in DCM at ambient temperature under nitrogen was added Diisopropylethylamine (0.26 g, 2.0 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 was 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 and preparative HPLC. Yield: 0.17 g (70%). 1H NMR (400 MHz, DMSO-d6): δ 1.26-1.27 (m, 2H), 1.54-1.56 (m, 2H), 2.18 (s, 3H), 2.81-2.82 (s, 3H), 5.26 (s, 2H) 7.13-7.15 (q, 1H, J=4.4 Hz), 7.30-7.43 (m, 6H), 7.58 (d, 4H), 7.65-7.69 (t, 2H, J=3.9 Hz), 7.74-7.79 (d, 1H, J=8.0 Hz), 7.97-8.01 (m, 2H), 8.43-8.48 (dd, 2H, J=4.89 Hz), 9.186 (s, 1H). LCMS: (ES+) m/z=626 (M+H) Ascentis Express C18 (5.0×2.1-2.7 μm). Mphase A: 2% MeCN-98% H2O-10 mM NH4COOH. Mphase B: 98% MeCN-2% H2O-10 mM NH4COOH. Flow: 5 ml/Min.

Workup

  1. concentrationThe mixture was concentrated
  2. additiondiluted with water
  3. extractionextracted with EtOAc
  4. washThe organic layer was 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-b3bcfdad81b64c2bbf8ac67ffa594388
Source dataset
uspto-grants-2011_11
Patent number
US08048887B2

Reaction notes

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