Benzyloxyamine hydrochloride → 1'-methyl-6-[(E)-3-[3-[(E)-C-methyl-N-phenylmethoxycarbonimidoyl]azetidin-1-yl]-3-oxoprop-1-enyl]spiro[1,4-dihydro-1,8-naphthyridine-3,4'-piperidine]-2-one
Reaction equation
Cl.[CH2:2]([O:9][NH2:10])[C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=1.[C:11]([CH:14]1[CH2:17][N:16]([C:18](=[O:38])/[CH:19]=[CH:20]/[C:21]2[CH:22]=[C:23]3[C:34](=[N:35][CH:36]=2)[NH:33][C:32](=[O:37])[C:25]2([CH2:30][CH2:29][N:28]([CH3:31])[CH2:27][CH2:26]2)[CH2:24]3)[CH2:15]1)(=O)[CH3:12]>CO>[CH3:31][N:28]1[CH2:29][CH2:30][C:25]2([CH2:24][C:23]3[C:34](=[N:35][CH:36]=[C:21](/[CH:20]=[CH:19]/[C:18](=[O:38])[N:16]4[CH2:15][CH:14](/[C:11](=[N:10]/[O:9][CH2:2][C:3]5[CH:8]=[CH:7][CH:6]=[CH:5][CH:4]=5)/[CH3:12])[CH2:17]4)[CH:22]=3)[NH:33][C:32]2=[O:37])[CH2:26][CH2:27]1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
O-benzylhydroxylamine hydrochloride (13.5 mg, 0.08 mmol) was added to a solution of (E)-6-(3-(3-acetylazetidin-1-yl)-3-oxoprop-1-enyl)-1′-methyl-1H-spiro[[1,8]naphthyridine-3,4′-piperidin]-2(4H)-one (23.0 mg, 0.06 mmol) in methanol (1.5 mL) at room temperature. The reaction mixture was stirred overnight. After concentration to dryness, the residue was purified by chromatography on silica gel using dichloromethane/methanol (9:1) as eluent. The title product was obtained as a pink solid (9 mg, 31%).
Workup
- concentrationAfter concentration to dryness
- customthe residue was purified by chromatography on silica gel
Sources & evidence
- ORD record
- ord-35f13e360d96448f9430109667183d79
- Source dataset
- uspto-grants-2014_09
- Patent number
- US08846711B2
Reaction notes
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