1-Hydroxybenzotriazole → {2-[3-(Allyl-cyclohexyl-carbamoyl)-5-chloro-phenoxy]-ethyl}-pyridin-4-yl-carbamic acid tert-butyl ester
Reaction equation
[C:1]([O:5][C:6]([N:8]([C:22]1[CH:27]=[CH:26][N:25]=[CH:24][CH:23]=1)[CH2:9][CH2:10][O:11][C:12]1[CH:13]=[C:14]([CH:18]=[C:19]([Cl:21])[CH:20]=1)[C:15]([OH:17])=O)=[O:7])([CH3:4])([CH3:3])[CH3:2].CN(C(ON1N=NC2C=CC=CC1=2)=[N+](C)C)C.[B-](F)(F)(F)F.C1C=CC2N(O)N=NC=2C=1.CCN(C(C)C)C(C)C.[CH2:69]([NH:72][CH:73]1[CH2:78][CH2:77][CH2:76][CH2:75][CH2:74]1)[CH:70]=[CH2:71]>CN(C=O)C>[C:1]([O:5][C:6](=[O:7])[N:8]([CH2:9][CH2:10][O:11][C:12]1[CH:20]=[C:19]([Cl:21])[CH:18]=[C:14]([C:15](=[O:17])[N:72]([CH2:69][CH:70]=[CH2:71])[CH:73]2[CH2:78][CH2:77][CH2:76][CH2:75][CH2:74]2)[CH:13]=1)[C:22]1[CH:27]=[CH:26][N:25]=[CH:24][CH:23]=1)([CH3:3])([CH3:4])[CH3:2]Participants
7
Reactant 5
Product 1
Reagents, catalysts & solvents 1
Procedure
To a stirred solution of 3-[2-(tert-butoxycarbonyl-pyridin-4-yl-amino)-ethoxy]-5-chloro-benzoic acid (0.039 g), TBTU (0.064 g) and HOBt (0.027 g) in DMF (1 ml) was added DIPEA (0.036 ml) followed by N-allylcyclohexylamine (0.029 ml) after 15 min. The reaction mixture was stirred at room temperature for 18 h and then concentrated under reduced pressure. The residue was subjected to preparative hplc and the title compound (0.032 g) was obtained as a colourless gum by concentration of the required fraction under reduced pressure and drying by repetitive addition of acetonitrile and concentration under reduced pressure.
Workup
- concentrationconcentrated under reduced pressure
Sources & evidence
- ORD record
- ord-8f02e0f8d65d4cbfaf042fbf4070ddf1
- Source dataset
- uspto-grants-2001_12
- Patent number
- US06326386B1
Reaction notes
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