Chlorosuccinimide → (S)-tert-butyl (1-((9-chloro-2,6-dimethyl-5-oxo-5,6-dihydrobenzo[c][2,7]naphthyridin-8-yl)oxy)-4-methylpentan-2-yl)carbamate

HRID 1398437Notes

Reaction equation

[CH3:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][N:11]=1)[C:8](=[O:12])[N:7]([CH3:13])[C:6]1[CH:14]=[C:15]([O:18][CH2:19][C@@H:20]([NH:25][C:26](=[O:32])[O:27][C:28]([CH3:31])([CH3:30])[CH3:29])[CH2:21][CH:22]([CH3:24])[CH3:23])[CH:16]=[CH:17][C:5]2=1.C1C(=O)N([Cl:40])C(=O)C1>>[Cl:40][C:16]1[C:15]([O:18][CH2:19][C@@H:20]([NH:25][C:26](=[O:32])[O:27][C:28]([CH3:30])([CH3:29])[CH3:31])[CH2:21][CH:22]([CH3:24])[CH3:23])=[CH:14][C:6]2[N:7]([CH3:13])[C:8](=[O:12])[C:9]3[C:4]([C:5]=2[CH:17]=1)=[CH:3][C:2]([CH3:1])=[N:11][CH:10]=3

Participants

Reactant 2

HCID 31398Chlorosuccinimide

HCID 86710415(S)-tert-butyl (1-((2,6-dimethyl-5-oxo-5,6-dihydrobenzo[c][2,7]naphthyridin-8-yl)oxy)-4-methylpentan-2-yl)carbamate

Product 1

HCID 86710417(S)-tert-butyl (1-((9-chloro-2,6-dimethyl-5-oxo-5,6-dihydrobenzo[c][2,7]naphthyridin-8-yl)oxy)-4-methylpentan-2-yl)carbamateYield 45.6%

Procedure

(S)-tert-butyl (1-((2,6-dimethyl-5-oxo-5,6-dihydrobenzo[c][2,7]naphthyridin-8-yl)oxy)-4-methylpentan-2-yl)carbamate (0.05 g, 0.114 mmol), prepared as described in Example 67, Part F, was subjected to chlorination using NCS (0.018 g, 0.137 mmol), using the procedure described in Example 20, Part A, to give (S)-tert-butyl (1-((9-chloro-2,6-dimethyl-5-oxo-5,6-dihydrobenzo[c][2,7]naphthyridin-8-yl)oxy)-4-methylpentan-2-yl)carbamate (50 mg, 0.052 mmol, 45% yield) as colorless oil. LC/MS (ESI) m/e 474.7 [(M+H)+, calcd for C25H32ClN3O4 474.2]; LC/MS retention time (method H): tR=0.94 min.

Sources & evidence

ORD record: ord-e9d8d3fa5002452797e1831c3697ef65
Source dataset: uspto-grants-2014_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08901305B2

Reaction notes

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