Cyclopentanol → Methyl 4-[(5,6-dichloro-2-{[4-(cyclopentyloxy)-phenyl]imino}-3-methyl-2,3-dihydro-1h-benzimidazol-1-yl)methyl]benzoate

HRID 1594523Notes

Reaction equation

HRID 1594523 reaction equation
[Cl:1][C:2]1[C:30]([Cl:31])=[CH:29][C:5]2[N:6]([CH2:18][C:19]3[CH:28]=[CH:27][C:22]([C:23]([O:25][CH3:26])=[O:24])=[CH:21][CH:20]=3)[C:7](=[N:10][C:11]3[CH:16]=[CH:15][C:14]([OH:17])=[CH:13][CH:12]=3)[N:8]([CH3:9])[C:4]=2[CH:3]=1.[CH:32]1(O)[CH2:36][CH2:35][CH2:34][CH2:33]1.CC(OC(/N=N/C(OC(C)C)=O)=O)C.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>C(Cl)Cl>[Cl:1][C:2]1[C:30]([Cl:31])=[CH:29][C:5]2[N:6]([CH2:18][C:19]3[CH:28]=[CH:27][C:22]([C:23]([O:25][CH3:26])=[O:24])=[CH:21][CH:20]=3)[C:7](=[N:10][C:11]3[CH:16]=[CH:15][C:14]([O:17][CH:32]4[CH2:36][CH2:35][CH2:34][CH2:33]4)=[CH:13][CH:12]=3)[N:8]([CH3:9])[C:4]=2[CH:3]=1

Participants

6

Reactant 4

HCID 7298CyclopentanolHCID 11776TriphenylphosphineHCID 5363146Diisopropyl azodicarboxylateHCID 69418442Methyl 4-[(5,6-dichloro-2-{[4-(hydroxy)-phenyl]imino}-3-methyl-2,3-dihydro-1h-benzimidazol-1-yl)methyl]benzoate

Product 1

HCID 69416804Methyl 4-[(5,6-dichloro-2-{[4-(cyclopentyloxy)-phenyl]imino}-3-methyl-2,3-dihydro-1h-benzimidazol-1-yl)methyl]benzoate

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To the title compound of Example 20, Step A (0.03 mmol, 14 mg) in CH2Cl2 (0.6 mL) was added cyclopentanol (0.08 mmol, 7 μL), DIAD (0.06 mmol, 12 μL) and Ph3P (0.06 mmol, 16 mg). The reaction mixture was allowed to stand at ambient temperature for 16 h, then purified by chromatography on silica eluting with 10% and 25% EtOAc in hexanes to afford the product as a white solid. LC-MS (ESI, Method B): 2.12 min, m/z 524.2 (M+1).

Workup

  1. custompurified by chromatography on silica eluting with 10% and 25% EtOAc in hexanes

Sources & evidence

ORD record
ord-3c10be5519c14ce1bcd0b404be86989f
Source dataset
uspto-grants-2007_11
Patent number
US07301036B2

Reaction notes

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