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]butanoyl}amino)-2-methyl-3-oxo-2,3-dihydro-1H-indazole-1-carboxylate
Reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:23]#[N:24])=[C:6]([C:8]2[C:13]([O:14][CH3:15])=[CH:12][N:11]([CH:16]([CH2:20][CH3:21])[C:17](O)=[O:18])[C:10](=[O:22])[CH:9]=2)[CH:7]=1.[NH2:25][C:26]1[CH:34]=[C:33]2[C:29]([C:30](=[O:43])[N:31]([CH3:42])[N:32]2[C:35]([O:37][C:38]([CH3:41])([CH3:40])[CH3:39])=[O:36])=[CH:28][CH:27]=1>>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([C:23]#[N:24])=[C:6]([C:8]2[C:13]([O:14][CH3:15])=[CH:12][N:11]([CH:16]([CH2:20][CH3:21])[C:17]([NH:25][C:26]3[CH:34]=[C:33]4[C:29]([C:30](=[O:43])[N:31]([CH3:42])[N:32]4[C:35]([O:37][C:38]([CH3:39])([CH3:40])[CH3:41])=[O:36])=[CH:28][CH:27]=3)=[O:18])[C:10](=[O:22])[CH:9]=2)[CH:7]=1Participants
3
Reactant 2
Product 1
Procedure
87 mg (0.25 mmol) of 2-[4-(5-chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]butanoic acid (racemate) and 74 mg (0.27 mmol, 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 preparative HPLC (Reprosil C18, water/acetonitrile gradient). Yield: 112 mg (77% of theory)
Workup
- customThe crude product was purified by preparative HPLC (Reprosil C18, water/acetonitrile gradient)
Sources & evidence
- ORD record
- ord-7186ab95260b4183bd0eccb59c380eaa
- Source dataset
- uspto-grants-2016_09
- Patent number
- US09434690B2
Reaction notes
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