Diisopropylethylamine → Methyl ({[7-(3-{[(3-isopropylphenyl)amino]carbonyl}phenyl)-5,6,7,8-tetrahydro-2,7-naphthyridin-4-yl]carbonyl}amino)acetate

HRID 1052089Notes

Reaction equation

HRID 1052089 reaction equation
[CH:1]([C:4]1[CH:5]=[C:6]([NH:10][C:11]([C:13]2[CH:14]=[C:15]([N:19]3[CH2:28][C:27]4[CH:26]=[N:25][CH:24]=[C:23]([C:29]([OH:31])=O)[C:22]=4[CH2:21][CH2:20]3)[CH:16]=[CH:17][CH:18]=2)=[O:12])[CH:7]=[CH:8][CH:9]=1)([CH3:3])[CH3:2].C(N(CC)C(C)C)(C)C.CCCP(=O)=O.Cl.[CH3:48][O:49][C:50](=[O:53])[CH2:51][NH2:52]>CN(C1C=CN=CC=1)C.ClCCCl>[CH:1]([C:4]1[CH:5]=[C:6]([NH:10][C:11]([C:13]2[CH:14]=[C:15]([N:19]3[CH2:28][C:27]4[CH:26]=[N:25][CH:24]=[C:23]([C:29]([NH:52][CH2:51][C:50]([O:49][CH3:48])=[O:53])=[O:31])[C:22]=4[CH2:21][CH2:20]3)[CH:16]=[CH:17][CH:18]=2)=[O:12])[CH:7]=[CH:8][CH:9]=1)([CH3:2])[CH3:3]

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 122755Glycine methyl ester hydrochlorideHCID 16167369Propylphosphoric anhydrideHCID 717365027-(3-{[(3-Isopropylphenyl)amino]carbonyl}phenyl)-5,6,7,8-tetrahydro-2,7-naphthyridine-4-carboxylic acid

Product 1

HCID 71736346Methyl ({[7-(3-{[(3-isopropylphenyl)amino]carbonyl}phenyl)-5,6,7,8-tetrahydro-2,7-naphthyridin-4-yl]carbonyl}amino)acetateYield 64.2%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 111,2-DichloroethaneSolvent

Procedure

To a mixture of 7-(3-{[(3-isopropylphenyl)amino]carbonyl}phenyl)-5,6,7,8-tetrahydro-2,7-naphthyridine-4-carboxylic acid (40 mg, 0.096 mmol), N,N-diisopropylethylamine (0.067 mL, 0.39 mmol), and catalytic DMAP in 2.5 mL 1,2-dichloroethane at rt was added propylphosphonic anhydride solution (50 wt % in EtOAc, 0.069 mL, 0.116 mmol). After 6 min at rt, glycine methyl ester hydrochloride (18.1 mg, 0.144 mmol) was added and the reaction stirred at rt for 4 hours. The reaction was quenched with aqueous NaHCO3 solution, extracted with EtOAc, the EtOAc layer washed with H2O, aqueous NaHCO3 solution, brine, dried with anhydrous Na2SO4 and rotary evaporated. This material was chromatographed eluting with CHCl3/EtOAc plus 10% MeOH to give the title compound as a light yellow solid (30 mg, 64%). 1H NMR (CDCl3) δ: 8.55 (s, 1H), 8.47 (s, 1H), 7.93 (s, 1H), 7.53 (d, J=11.4 Hz, 2H), 7.47 (d, J=7.3 Hz, 1H), 7.33-7.40 (m, 1H), 7.20-7.32 (m, 2H), 7.11 (d, J=7.9 Hz, 1H), 7.03 (d, J=7.6 Hz, 1H), 6.62 (t, J=5.1 Hz, 1H), 4.47 (s, 2H), 4.24 (d, J=5.3 Hz, 2H), 3.81 (s, 3H), 3.56-3.61 (m, 2H), 3.20 (t, J=5.6 Hz, 2H), 2.85-2.99 (m, 1H), 1.27 (d, J=6.7 Hz, 6H)

Workup

  1. customThe reaction was quenched with aqueous NaHCO3 solution
  2. extractionextracted with EtOAc
  3. washthe EtOAc layer washed with H2O, aqueous NaHCO3 solution, brine
  4. dry with materialdried with anhydrous Na2SO4 and rotary evaporated
  5. customThis material was chromatographed
  6. washeluting with CHCl3/EtOAc plus 10% MeOH

Sources & evidence

ORD record
ord-0d52ddab48054ba695918ac430e15790
Source dataset
uspto-grants-2016_07
Patent number
US09388176B2

Reaction notes

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