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

HRID 1520951Notes

Reaction equation

HRID 1520951 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-33bbf8b5427b413fa4a65934622b8862
Source dataset
uspto-grants-2015_07
Patent number
US09073871B2

Reaction notes

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