Dibutylamine → HCID 89650481, compound

HRID 2274574Notes

Reaction equation

HRID 2274574 reaction equation
[Br:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:12]([CH3:13])=[CH:11][C:10]([C:14](O)=[O:15])=[N:9]2)=[C:4]([C:17]([N:19]2[C@H:28]([CH2:29][OH:30])[CH2:27][C:26]3[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=3)[CH2:20]2)=[O:18])[CH:3]=1.[CH2:31]([NH:35][CH2:36][CH2:37][CH2:38][CH3:39])[CH2:32][CH2:33][CH3:34].CCN=C=NCCCN(C)C.Cl.C1C=CC2N(O)N=NC=2C=1>CN(C=O)C.O>[Br:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:12]([CH3:13])=[CH:11][C:10]([C:14]([N:35]([CH2:36][CH2:37][CH2:38][CH3:39])[CH2:31][CH2:32][CH2:33][CH3:34])=[O:15])=[N:9]2)=[C:4]([C:17]([N:19]2[C@H:28]([CH2:29][OH:30])[CH2:27][C:26]3[C:21](=[CH:22][CH:23]=[CH:24][CH:25]=3)[CH2:20]2)=[O:18])[CH:3]=1

Participants

7

Reactant 4

HCID 8148DibutylamineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 89660237HCID 89660237, compound

Product 1

HCID 89650481HCID 89650481, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 6228DimethylformamideSolvent

Procedure

To a solution of (S)-1-(4-bromo-2-(3-(hydroxymethyl)-1,2,3,4-tetrahydroisoquinoline-2-carbonyl)phenyl)-5-methyl-1H-pyrazole-3-carboxylic acid (10.0 g, 21.3 mmol) in DMF (100 mL) were added dibutylamine (3.7 mL, 21.3 mmol), EDC.HCl (6.1 g, 31.9 mmol), HOBT (3.3 g, 21.3 mmol) followed by stirring at RT for 12 h. The reaction mixture was diluted with water, extracted with EtOAc (100 mL×2), twice. The combined organic layers were washed with water (100 mL), brine (50 mL), dried over sodium sulphate and concentrated invacuo. The residue was purified on silica gel (100-200 mesh) to afford the title compound as a hygroscopic solid, 4.5 g (36%). Rf=0.44 (55% EtOAc in hexane); 1H NMR (400 MHz, DMSO-d6): δ 8.00-7.40 (m, 3H), 7.30-6.80 (m, 4H), 6.50-6.20 (m, 1H), 5.10-4.00 (m, 3H), 4.00-2.40 (m, 9H), 2.40-2.00 (m, 3H), 1.60-0.50 (m, 14H); LC-MS: m/z 581.4 (M+H); HPLC: 90.74% (RT=9.216 min., method C).

Workup

  1. extractionextracted with EtOAc (100 mL×2)
  2. washThe combined organic layers were washed with water (100 mL), brine (50 mL)
  3. dry with materialdried over sodium sulphate
  4. concentrationconcentrated invacuo
  5. customThe residue was purified on silica gel (100-200 mesh)

Sources & evidence

ORD record
ord-6e471c0ad10842c2b8f91c87d90d3445
Source dataset
uspto-grants-2015_09
Patent number
US09126980B2

Reaction notes

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