Hexane → Methyl 6-(3-chloro-4-fluorobenzyl)-4-methoxy-2-[4-(methylamino)butyl]-3,5-dioxo-2,3,5,6,7,8-hexahydro-2,6-naphthyridine-1-carboxylate
Reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH:29]=[CH:30][C:31]=1[F:32])[CH2:5][N:6]1[CH2:15][CH2:14][C:13]2[C:8](=[C:9]([OH:27])[C:10](=[O:26])[N:11]([CH2:20][CH2:21][CH2:22][CH2:23][NH:24][CH3:25])[C:12]=2[C:16]([O:18][CH3:19])=[O:17])[C:7]1=[O:28].[CH3:33][Si](C=[N+]=[N-])(C)C.CCCCCC>ClCCl.CO>[Cl:1][C:2]1[CH:3]=[C:4]([CH:29]=[CH:30][C:31]=1[F:32])[CH2:5][N:6]1[CH2:15][CH2:14][C:13]2[C:8](=[C:9]([O:27][CH3:33])[C:10](=[O:26])[N:11]([CH2:20][CH2:21][CH2:22][CH2:23][NH:24][CH3:25])[C:12]=2[C:16]([O:18][CH3:19])=[O:17])[C:7]1=[O:28]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of methyl 6-(3-chloro-4-fluorobenzyl)-4-hydroxy-2-[4-(methylamino)butyl]-3,5-dioxo-2,3,5,6,7,8-hexahydro-2,6-naphthyridine-1-carboxylate (0.68 g, 1.45 mmol; Example 1, Step 11) and a solution of trimethylsilyldiazomethane in hexane (2.2 mL, 4.35 mmol; 2M) in dichloromethane-methanol (1.5 & 4.5 mL) was stirred at room temperature for one hour. The reaction mixture was concentrated under vacuum to provide the title compound. This was used in the following step without further purification. ES MS M+1=480
Workup
- concentrationThe reaction mixture was concentrated under vacuum
Sources & evidence
- ORD record
- ord-ad975e3752a44800951ce2fcc31b2899
- Source dataset
- uspto-grants-2012_10
- Patent number
- US08293731B2
Reaction notes
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