Phenylboronic Acid → 4-Cyano-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazole-2-carboxylic acid (3-cyclohex-1-enyl-biphenyl-4-yl)-amide

HRID 1711252Notes

Reaction equation

HRID 1711252 reaction equation
Br[C:2]1[CH:7]=[CH:6][C:5]([NH:8][C:9]([C:11]2[N:12]([CH2:18][O:19][CH2:20][CH2:21][Si:22]([CH3:25])([CH3:24])[CH3:23])[CH:13]=[C:14]([C:16]#[N:17])[N:15]=2)=[O:10])=[C:4]([C:26]2[CH2:31][CH2:30][CH2:29][CH2:28][CH:27]=2)[CH:3]=1.[C:32]1(B(O)O)[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=1>CCOC(C)=O.CCCCCC>[C:26]1([C:4]2[CH:3]=[C:2]([C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=3)[CH:7]=[CH:6][C:5]=2[NH:8][C:9]([C:11]2[N:12]([CH2:18][O:19][CH2:20][CH2:21][Si:22]([CH3:24])([CH3:25])[CH3:23])[CH:13]=[C:14]([C:16]#[N:17])[N:15]=2)=[O:10])[CH2:31][CH2:30][CH2:29][CH2:28][CH:27]=1

Participants

4

Reactant 2

HCID 66827Phenylboronic AcidHCID 594575324-Cyano-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazole-2-carboxylic acid (4-bromo-2-cyclohex-1-enyl-phenyl)-amide

Product 1

HCID 587548104-Cyano-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazole-2-carboxylic acid (3-cyclohex-1-enyl-biphenyl-4-yl)-amideYield 85%

Reagents, catalysts & solvents 1

HCID 21226206Ethyl acetate hexaneSolvent

Procedure

The title compound was prepared by the procedure of Example 28, step (a) using 4-cyano-1-(2-trimethylsilanyl-ethoxymethyl)-1H-imidazole-2-carboxylic acid (4-bromo-2-cyclohex-1-enyl-phenyl)-amide (as prepared in the Example 11, step (f), 19 mg, 0.038 mmol), and phenylboronic acid (5.1 mg, 0.042 mmol). Silica gel chromatography (5-10% EtOAc/hexane) afforded the title compound (16 mg, 85%) as a white solid. 1H-NMR (CDCl3; 400 MHz): δ 9.79 (s, 1H), 8.42 (d, 1H, J=8.5 Hz), 7.78 (s, 1H), 7.59 (m, 2H), 7.52 (dd, 1H, J=8.5, 2.1 Hz), 7.44 (m, 2H), 7.41 (d, 1H, J=2.1 Hz), 7.33 (m, 1H), 5.97 (s, 2H), 5.91 (m, 1H), 3.67 (t, 2H, J=8.3 Hz), 2.26-2.36 (m, 4H), 1.75-1.93 (m, 4H), 0.98 (t, 2H, J=8.3 Hz), 0.01 (s, 9H). Mass spectrum (ESI, m/z): Calcd. for C29H34N4O2Si, 499.3 (M+H), found 498.8.

Workup

  1. customThe title compound was prepared by the procedure of Example 28, step (a)

Sources & evidence

ORD record
ord-a3736dfdcf9e4f91addfc1c6c151d65e
Source dataset
uspto-grants-2010_09
Patent number
US07790724B2

Reaction notes

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