Triethylamine → ethyl 3-(6-((cyclopentyl(3,5-dimethyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenyl)methyl)amino)nicotinamido)propanoate

HRID 1892791Notes

Reaction equation

HRID 1892791 reaction equation
[CH:1]1([CH:6]([NH:24][C:25]2[CH:33]=[CH:32][C:28]([C:29](O)=[O:30])=[CH:27][N:26]=2)[C:7]2[CH:12]=[C:11]([CH3:13])[C:10]([N:14]3[CH:18]=[C:17]([C:19]([F:22])([F:21])[F:20])[CH:16]=[N:15]3)=[C:9]([CH3:23])[CH:8]=2)[CH2:5][CH2:4][CH2:3][CH2:2]1.Cl.[CH2:35]([O:37][C:38](=[O:42])[CH2:39][CH2:40][NH2:41])[CH3:36].ON1C2N=CC=CC=2N=N1.C(N(CC)CC)C.Cl.CN(C)CCCN=C=NCC>ClCCl>[CH:1]1([CH:6]([NH:24][C:25]2[CH:33]=[CH:32][C:28]([C:29]([NH:41][CH2:40][CH2:39][C:38]([O:37][CH2:35][CH3:36])=[O:42])=[O:30])=[CH:27][N:26]=2)[C:7]2[CH:12]=[C:11]([CH3:13])[C:10]([N:14]3[CH:18]=[C:17]([C:19]([F:21])([F:20])[F:22])[CH:16]=[N:15]3)=[C:9]([CH3:23])[CH:8]=2)[CH2:5][CH2:4][CH2:3][CH2:2]1

Participants

7

Reactant 5

HCID 8471TriethylamineHCID 181649HOAtHCID 458475beta-Alanine, ethyl ester, hydrochlorideHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 68178659(+/-)-6-((cyclopentyl(3,5-dimethyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenyl)methyl)amino)nicotinic acid

Product 1

HCID 68156557ethyl 3-(6-((cyclopentyl(3,5-dimethyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenyl)methyl)amino)nicotinamido)propanoate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a mixture of (+/−)-6-((cyclopentyl(3,5-dimethyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenyl)methyl)amino)nicotinic acid (731 mg, 1.59 mmol), β-alanine ethyl ester hydrochloride (516 mg, 3.19 mmol), and 1-hydroxy-7-azabenzotriazole (336 mg, 2.39 mmol) in dichloromethane (15.9 mL) was added triethylamine (0.782 mL, 5.58 mmol) followed by N-(3-dimethylaminopropyl)-N′-ethylcarbodiimide hydrochloride (465 mg, 2.39 mmol). After 70 hours, the mixture was diluted with dichloromethane (50 mL) and washed with water (3×50 mL) and sat. aq sodium chloride (50 mL). The organic layer was dried (Na2SO4) and filtered, and the filtrate was concentrated under reduced pressure. Purification by column chromatography (ethyl acetate/heptane) followed by chiral SFC (Cellulose-2 column, 21 mm×250 mm, 35% methanol/carbon dioxide eluent) gave ethyl 3-(6-((cyclopentyl(3,5-dimethyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenyl)methyl)amino)nicotinamido)propanoate, Isomer 1 (SFC retention time 2.71 min) and ethyl 3-(6-((cyclopentyl(3,5-dimethyl-4-(4-(trifluoromethyl)-1H-pyrazol-1-yl)phenyl)methyl)amino)nicotinamido)propanoate, Isomer 2 (SFC retention time 3.43 min). 1H NMR (400 MHz, CDCl3, δ): 8.45 (d, J=2.0 Hz, 1H), 7.91 (s, 1H), 7.81-7.72 (m, 2H), 7.09 (s, 2H), 6.84 (t, J=5.7 Hz, 1H), 6.41-6.27 (m, 1H), 6.26 (d, J=9.0 Hz, 1H), 4.33 (t, J=7.6 Hz, 1H), 4.14 (q, J=7.1 Hz, 2H), 3.65 (q, J=6.0 Hz, 2H), 2.59 (t, J=6.0 Hz, 2H), 2.33-2.19 (m, 1H), 1.98 (s, 6H), 1.96-1.85 (m, 1H), 1.74-1.37 (m, 6H), 1.34-1.21 (m, 4H). MS (M+1): 558.5.

Workup

  1. washwashed with water (3×50 mL) and sat. aq sodium chloride (50 mL)
  2. dry with materialThe organic layer was dried (Na2SO4)
  3. filtrationfiltered
  4. concentrationthe filtrate was concentrated under reduced pressure
  5. customPurification by column chromatography (ethyl acetate/heptane)

Sources & evidence

ORD record
ord-c36fdc8330d8475495685942d2d0f5aa
Source dataset
uspto-grants-2013_08
Patent number
US08507533B2

Reaction notes

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