Triethylamine → 3-{4-[1-(4-Bromo-phenoxy)-heptyl]-benzoylamino}-propionic acid methyl ester

HRID 1914309Notes

Reaction equation

HRID 1914309 reaction equation
[Br:1][C:2]1[CH:24]=[CH:23][C:5]([O:6][CH:7]([C:14]2[CH:22]=[CH:21][C:17]([C:18]([OH:20])=O)=[CH:16][CH:15]=2)[CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH3:13])=[CH:4][CH:3]=1.C(N(CC)CC)C.[CH3:32][O:33][C:34](=[O:38])[CH2:35][CH2:36][NH2:37].CCN=C=NCCCN(C)C>C(Cl)Cl.CN(C1C=CN=CC=1)C>[CH3:32][O:33][C:34](=[O:38])[CH2:35][CH2:36][NH:37][C:18](=[O:20])[C:17]1[CH:16]=[CH:15][C:14]([CH:7]([O:6][C:5]2[CH:4]=[CH:3][C:2]([Br:1])=[CH:24][CH:23]=2)[CH2:8][CH2:9][CH2:10][CH2:11][CH2:12][CH3:13])=[CH:22][CH:21]=1

Participants

7

Reactant 4

HCID 8471TriethylamineHCID 159081-Ethyl-3-(3'-dimethylaminopropyl)carbodiimideHCID 192794Methyl beta-alanateHCID 671534294-[1-(4-Bromo-phenoxyl)-heptyl]-benzoic acid

Product 1

HCID 671533873-{4-[1-(4-Bromo-phenoxy)-heptyl]-benzoylamino}-propionic acid methyl esterYield 80.1%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

To a mixture of 4-[1-(4-bromo-phenoxyl)-heptyl]-benzoic acid (1700 mg, 4.35 mmol) in methylene chloride (43 mL) are added triethyl amine (1.82 mL, 13.4 mmol), DMAP (5.0 mg), 3-amino-propionic acid methyl ester (910 mg, 6.52 mmol) and EDCI (2507 mg, 13.04 mmol) at room temperature. The reaction mixture is stirred at room temperature overnight, loaded on silica gel, eluted with eluted with hexanes with a gradient from 0% of ethyl acetate to 100% of ethyl acetate giving racemic 3-{4-[1-(4-bromo-phenoxyl)-heptyl]-benzoylamino}-propionic acid methyl ester (1660 mg).

Workup

  1. washeluted
  2. washwith eluted with hexanes with a gradient from 0% of ethyl acetate to 100% of ethyl acetate

Sources & evidence

ORD record
ord-d1234ec8e02c459f9566f94e20091c8b
Source dataset
uspto-grants-2013_12
Patent number
US08609892B2

Reaction notes

Loading…