Acetic Acid → 4-[(4-cyclohexylphenylamino)methyl]-N-(2H-tetrazol-5-yl)benzamide

HRID 1633921Notes

Reaction equation

[CH:1]([C:3]1[CH:16]=[CH:15][C:6]([C:7]([NH:9][C:10]2[N:11]=[N:12][NH:13][N:14]=2)=[O:8])=[CH:5][CH:4]=1)=O.[CH:17]1([C:23]2[CH:29]=[CH:28][C:26]([NH2:27])=[CH:25][CH:24]=2)[CH2:22][CH2:21][CH2:20][CH2:19][CH2:18]1.C(O)(=O)C.C([BH3-])#N.[Na+]>CN(C=O)C.COC(OC)OC.CO>[CH:17]1([C:23]2[CH:24]=[CH:25][C:26]([NH:27][CH2:1][C:3]3[CH:16]=[CH:15][C:6]([C:7]([NH:9][C:10]4[N:11]=[N:12][NH:13][N:14]=4)=[O:8])=[CH:5][CH:4]=3)=[CH:28][CH:29]=2)[CH2:18][CH2:19][CH2:20][CH2:21][CH2:22]1

Participants

Conditions

Temperature: 25 °C

Procedure

The above resin bound 4-formyl-N-(2H-tetrazol-5-yl)benzamide (50 mg) was treated with a 0.5 M solution of 4-cyclohexylaniline (0.25 mmol, 41.25 mg) in a mixture of DMF and trimethylorthoformate (1:1, 0.5 mL) and glacial acetic acid (50 μL) for 1 hour at 25° C. followed by sodium cyanoborohydride (250 μmol, 16 mg) dissolved in a mixture of DMF and methanol (1:1, 0.25 mL). Shaking at 25° C. for 4 hours followed by filtration and washing with a mixture of DMF and methanol (1:1, 2×1 mL), 3×1 mL DMF and 2×1 mL dichloromethane afforded the desired product.

Workup

filtrationfollowed by filtration
washwashing with a mixture of DMF and methanol (1:1, 2×1 mL), 3×1 mL DMF and 2×1 mL dichloromethane

Sources & evidence

ORD record: ord-8a87f3be9d044abcb01d94a6ef885a79
Source dataset: uspto-grants-2003_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06503949B1

Reaction notes

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