Aniline → [4-(4-Phenylcarbamoylmethoxyphenyl)butyl]carbamic acid benzyl ester

HRID 252174Notes

Reaction equation

HRID 252174 reaction equation
[CH2:1]([O:8][C:9]([NH:11][CH2:12][CH2:13][CH2:14][CH2:15][C:16]1[CH:26]=[CH:25][C:19]([O:20][CH2:21][C:22]([OH:24])=O)=[CH:18][CH:17]=1)=[O:10])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[NH2:27][C:28]1[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=1.CCN=C=NCCCN(C)C.Cl>CN(C1C=CN=CC=1)C.C(Cl)Cl>[CH2:1]([O:8][C:9](=[O:10])[NH:11][CH2:12][CH2:13][CH2:14][CH2:15][C:16]1[CH:17]=[CH:18][C:19]([O:20][CH2:21][C:22](=[O:24])[NH:27][C:28]2[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=2)=[CH:25][CH:26]=1)[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Participants

6

Reactant 3

HCID 6115AnilineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 22054455[4-(4-{[(Benzyloxy)carbonyl]amino}butyl)phenoxy]acetic acid

Product 1

HCID 21031125[4-(4-Phenylcarbamoylmethoxyphenyl)butyl]carbamic acid benzyl esterYield 99.1%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6344DichloromethaneSolvent

Procedure

A mixture of [4-(4-benzyloxycarbonylaminobutyl)phenoxy]acetic acid (300 mg, 0.84 mmol), aniline (0.15 mL, 1.70 mmol), DMAP (60 mg, 0.50 mmol) and EDC.HCl (320 mg, 1.70 mmol) in CH2Cl2 (30 mL) was stirred at room temperature for 66 h. The reaction mixture was concentrated under vacuum and the residue was subjected to flash silica gel column chromatography eluting with methanol/CH2Cl2 (1:99, v/v) to give the desired amide 18 as a white solid (360 mg, 99% yield). 1H NMR (300 MHz, CDCl3) δ 1.55 (m, 4H), 2.60 (m, 2H), 3.20 (m, 2H), 4.58 (s, 2H), 4.70 (br s, 1H), 5.10 (s, 2H), 6.88 (d, 2H), 7.15 (m, 3H), 7.35 (m, 7H), 7.58 (d, 2H), 8.25 (s, 1H). m/z (ESI): 433 [C26H28N2O4+H]+.

Workup

  1. concentrationThe reaction mixture was concentrated under vacuum
  2. washeluting with methanol/CH2Cl2 (1:99, v/v)

Sources & evidence

ORD record
ord-391e1b5a0dde4ae08684efc97e2c6932
Source dataset
uspto-grants-2011_01
Patent number
US07868010B2

Reaction notes

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