Triethylamine → (8-((5-Cyano-4-isopropoxypyridin-2-yl)carbamoyl)-2-(dimethoxymethyl)-5,6,7,8-tetrahydro-1,8-naphthyridin-3-yl)methyl methanesulfonate

HRID 1777987Notes

Reaction equation

C(N(CC)CC)C.[CH3:8][S:9](Cl)(=[O:11])=[O:10].[C:13]([C:15]1[C:16]([O:41][CH:42]([CH3:44])[CH3:43])=[CH:17][C:18]([NH:21][C:22]([N:24]2[C:33]3[C:28](=[CH:29][C:30]([CH2:39][OH:40])=[C:31]([CH:34]([O:37][CH3:38])[O:35][CH3:36])[N:32]=3)[CH2:27][CH2:26][CH2:25]2)=[O:23])=[N:19][CH:20]=1)#[N:14]>C1COCC1>[CH3:8][S:9]([O:40][CH2:39][C:30]1[C:31]([CH:34]([O:37][CH3:38])[O:35][CH3:36])=[N:32][C:33]2[N:24]([C:22](=[O:23])[NH:21][C:18]3[CH:17]=[C:16]([O:41][CH:42]([CH3:44])[CH3:43])[C:15]([C:13]#[N:14])=[CH:20][N:19]=3)[CH2:25][CH2:26][CH2:27][C:28]=2[CH:29]=1)(=[O:11])=[O:10]

Participants

Conditions

Temperature: 0 °C

Procedure

Triethylamine (80 μL, 0.577 mmol) and methanesulfonyl chloride (38 μL, 0.488 mmol) were added to solution of N-(5-cyano-4-isopropoxypyridin-2-yl)-7-(dimethoxymethyl)-6-(hydroxymethyl)-3,4-dihydro-1,8-naphthyridine-1(2H)-carboxamide (intermediate 164, 194 mg, 0.439 mmol) in THF (7 ml) at 0° C. The reaction mixture was stirred for approximately 2.5 h at 0° C. and filtered to remove solid impurities. The solid residue was washed with THF and the filtrate was concentrated to yield the title compound as slight yellow resin which was used directly in the next step.

Workup

filtrationfiltered
customto remove solid impurities
washThe solid residue was washed with THF
concentrationthe filtrate was concentrated

Sources & evidence

ORD record: ord-ca0f1a92800a4af69e53cdc88b8075d6
Source dataset: uspto-grants-2016_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09266883B2

Reaction notes

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