4-Cyanophenylboronic acid → HCID 66607441, compound

HRID 221030Notes

Reaction equation

HRID 221030 reaction equation
[C:1]([O:4][C@@H:5]1[C@@H:10]([O:11][C:12](=[O:14])[CH3:13])[C@H:9]([O:15][C:16](=[O:18])[CH3:17])[C@@H:8]([CH2:19][O:20][C:21](=[O:23])[CH3:22])[O:7][C@H:6]1[C:24]1[CH:29]=[CH:28][C:27]([Cl:30])=[C:26]([CH2:31][C:32]2[S:33][C:34](Br)=[CH:35][CH:36]=2)[CH:25]=1)(=[O:3])[CH3:2].[C:38]([C:40]1[CH:45]=[CH:44][C:43](B(O)O)=[CH:42][CH:41]=1)#[N:39]>>[C:1]([O:4][C@@H:5]1[C@@H:10]([O:11][C:12](=[O:14])[CH3:13])[C@H:9]([O:15][C:16](=[O:18])[CH3:17])[C@@H:8]([CH2:19][O:20][C:21](=[O:23])[CH3:22])[O:7][C@H:6]1[C:24]1[CH:29]=[CH:28][C:27]([Cl:30])=[C:26]([CH2:31][C:32]2[S:33][C:34]([C:43]3[CH:44]=[CH:45][C:40]([C:38]#[N:39])=[CH:41][CH:42]=3)=[CH:35][CH:36]=2)[CH:25]=1)(=[O:3])[CH3:2]

Participants

3

Reactant 2

HCID 27343264-Cyanophenylboronic acidHCID 600412891-(2,3,4,6-Tetra-O-acetyl-beta-D-glucopyranosyl)-3-(5bromo-2-thienylmethyl)-4-chlorobenzene

Product 1

HCID 66607441HCID 66607441, compound

Procedure

1-(2,3,4,6-Tetra-O-acetyl-β-D-glucopyranosyl)-3-(5-bromo-2-thienylmethyl)-4-chlorobenzene obtained in Example 128-(4) and 4-cyanophenylboronic acid were treated in a manner similar to Example 168-(1) to give 1-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-4-chloro-3-(5-(4-cyanophenyl)-2-thienylmethyl)benzene as colorless powder. APCI-Mass m/Z 657/659 (M+NH4). (2) The above 1-(2,3,4,6-tetra-O-acetyl-β-D-glucopyranosyl)-4-chloro-3-(5-(4-cyanophenyl)-2-thienylmethyl)benzene (128 mg) was suspended in ethanol (2 ml) and added thereto was a concentrated hydrochloric acid aqueous solution (1 ml). The mixture was heated reflux for 8.5 hours. The reaction solution was cooled and diluted with ethyl acetate and water. The organic layer was washed with water and successively washed with brine. After drying over magnesium sulfate, the solvent was evaporated under reduced pressure. The residue was purified by silica gel column chromatography (chloroform:methanol=9:1) to give the desired 1-(β-D-glucopyranosyl)-4-chloro-3-(5-(4-ethoxycarbonylphenyl)-2-thienylmethyl)benzene (39 mg) as pale yellow foam. APCI-Mass m/Z 536/538 (M+NH4).

Sources & evidence

ORD record
ord-90b4a4cab45a410bae8f5d4cfc36d207
Source dataset
uspto-grants-2012_06
Patent number
US08202984B2

Reaction notes

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