tert-Butyl 6-amino-2-methyl-3-oxo-2,3-dihydro-1H-indazole-1-carboxylate → tert-Butyl 6-({2-[4-(5-chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4-methoxybutanoyl}amino)-2-methyl-3-oxo-2,3-dihydro-1H-indazole-1-carboxylate

HRID 56906

Reaction equation

HRID 56906 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:25]#[N:26])=[C:6]([C:8]2[C:13]([O:14][CH3:15])=[CH:12][N:11]([CH:16]([CH2:20][CH2:21][O:22][CH3:23])[C:17](O)=[O:18])[C:10](=[O:24])[CH:9]=2)[CH:7]=1.[NH2:27][C:28]1[CH:36]=[C:35]2[C:31]([C:32](=[O:45])[N:33]([CH3:44])[N:34]2[C:37]([O:39][C:40]([CH3:43])([CH3:42])[CH3:41])=[O:38])=[CH:30][CH:29]=1>>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:25]#[N:26])=[C:6]([C:8]2[C:13]([O:14][CH3:15])=[CH:12][N:11]([CH:16]([CH2:20][CH2:21][O:22][CH3:23])[C:17]([NH:27][C:28]3[CH:36]=[C:35]4[C:31]([C:32](=[O:45])[N:33]([CH3:44])[N:34]4[C:37]([O:39][C:40]([CH3:41])([CH3:42])[CH3:43])=[O:38])=[CH:30][CH:29]=3)=[O:18])[C:10](=[O:24])[CH:9]=2)[CH:7]=1

Participants

3

Procedure

300 mg (796 μmol) of 2-[4-(5-chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4-methoxybutanoic acid (racemate) and 231 mg (876 μmol, 1.1 eq.) of tert-butyl 6-amino-2-methyl-3-oxo-2,3-dihydro-1H-indazole-1-carboxylate were reacted according to General Method 5A. The crude product was purified by flash chromatography (silica gel 50, cyclohexane/ethyl acetate mixtures). Yield: 229 mg (46% of theory)

Workup

  1. customThe crude product was purified by flash chromatography (silica gel 50, cyclohexane/ethyl acetate mixtures)

Sources & evidence

ORD record
ord-0773f0996c884f4c9753a1f00f7125c9
Source dataset
uspto-grants-2016_09
Patent number
US09434690B2

Linked notes

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