Triacetoxyperiodinane → 1-[5-(1,1-Dimethyl-2-oxo-ethyl)-isoxazol-3-yl]-3-{4-[7-(2-morpholin-4-yl-ethoxy)-benzo[d]imidazo[2,1-b]thiazol-2-yl]-phenyl}-urea

HRID 1038331Notes

Reaction equation

HRID 1038331 reaction equation
[OH:1][CH2:2][C:3]([C:6]1[O:10][N:9]=[C:8]([NH:11][C:12]([NH:14][C:15]2[CH:20]=[CH:19][C:18]([C:21]3[N:22]=[C:23]4[N:27]([CH:28]=3)[C:26]3[CH:29]=[CH:30][C:31]([O:33][CH2:34][CH2:35][N:36]5[CH2:41][CH2:40][O:39][CH2:38][CH2:37]5)=[CH:32][C:25]=3[S:24]4)=[CH:17][CH:16]=2)=[O:13])[CH:7]=1)([CH3:5])[CH3:4].CC(OI1(OC(C)=O)(OC(C)=O)OC(=O)C2C=CC=CC1=2)=O>ClCCl>[CH3:5][C:3]([C:6]1[O:10][N:9]=[C:8]([NH:11][C:12]([NH:14][C:15]2[CH:16]=[CH:17][C:18]([C:21]3[N:22]=[C:23]4[N:27]([CH:28]=3)[C:26]3[CH:29]=[CH:30][C:31]([O:33][CH2:34][CH2:35][N:36]5[CH2:37][CH2:38][O:39][CH2:40][CH2:41]5)=[CH:32][C:25]=3[S:24]4)=[CH:19][CH:20]=2)=[O:13])[CH:7]=1)([CH3:4])[CH:2]=[O:1]

Participants

4

Reactant 2

HCID 159087TriacetoxyperiodinaneHCID 461867861-[5-(2-Hydroxy-1,1-dimethyl-ethyl)-isoxazol-3-yl]-3-{4-[7-(2-morpholin-4-yl-ethoxy)-benzo[d]imidazo[2,1-b]thiazol-2-yl]-phenyl}-urea

Product 1

HCID 462144741-[5-(1,1-Dimethyl-2-oxo-ethyl)-isoxazol-3-yl]-3-{4-[7-(2-morpholin-4-yl-ethoxy)-benzo[d]imidazo[2,1-b]thiazol-2-yl]-phenyl}-urea

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

A mixture of 1-[5-(2-hydroxy-1,1-dimethyl-ethyl)-isoxazol-3-yl]-3-{4-[7-(2-morpholin-4-yl-ethoxy)-benzo[d]imidazo[2,1-b]thiazol-2-yl]-phenyl}-urea (I-1) (1 equivalent) and Dess-Martin periodinane (1-1.5 equivalents) in anhydrous dichloromethane is stirred at rt until the reaction is substantially complete as monitored by LCMS or TLC. The mixture is filtered through Celite and the filtrate is concentrated under reduced pressure. The residue is purified by silica gel flash chromatography to afford 1-[5-(1,1-dimethyl-2-oxo-ethyl)-isoxazol-3-yl]-3-{4-[7-(2-morpholin-4-yl-ethoxy)-benzo[d]imidazo[2,1-b]thiazol-2-yl]-phenyl}-urea (I-4a).

Workup

  1. filtrationThe mixture is filtered through Celite
  2. concentrationthe filtrate is concentrated under reduced pressure
  3. customThe residue is purified by silica gel flash chromatography

Sources & evidence

ORD record
ord-6449b7b245ae436180bb6da508bf5ed9
Source dataset
uspto-grants-2013_10
Patent number
US08551963B2

Reaction notes

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