Hydrochloric Acid → N-(5-cyano-4-(2-methoxyethoxy)pyridin-2-yl)-7-formyl-6-(hydroxymethyl)-3,4-dihydro-1,8-naphthyridine-1(2H)-carboxamide

HRID 1778082Notes

Reaction equation

HRID 1778082 reaction equation
[Si]([O:8][CH2:9][C:10]1[CH:11]=[C:12]2[C:17](=[N:18][C:19]=1[CH:20](OC)[O:21]C)[N:16]([C:25]([NH:27][C:28]1[CH:33]=[C:32]([O:34][CH2:35][CH2:36][O:37][CH3:38])[C:31]([C:39]#[N:40])=[CH:30][N:29]=1)=[O:26])[CH2:15][CH2:14][CH2:13]2)(C(C)(C)C)(C)C.Cl.C([O-])(O)=O.[Na+]>C1COCC1.O>[C:39]([C:31]1[C:32]([O:34][CH2:35][CH2:36][O:37][CH3:38])=[CH:33][C:28]([NH:27][C:25]([N:16]2[C:17]3[C:12](=[CH:11][C:10]([CH2:9][OH:8])=[C:19]([CH:20]=[O:21])[N:18]=3)[CH2:13][CH2:14][CH2:15]2)=[O:26])=[N:29][CH:30]=1)#[N:40]

Participants

6

Reactant 3

HCID 313Hydrochloric AcidHCID 516892Sodium BicarbonateHCID 1317347746-(((tert-butyldimethylsilyl)oxy)methyl)-N-(5-cyano-4-(2-methoxyethoxy)pyridin-2-yl)-7-(dimethoxymethyl)-3,4-dihydro-1,8-naphthyridine-1(2H)-carboxamide2×

Product 1

HCID 118036469N-(5-cyano-4-(2-methoxyethoxy)pyridin-2-yl)-7-formyl-6-(hydroxymethyl)-3,4-dihydro-1,8-naphthyridine-1(2H)-carboxamide

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of 6-(((tert-butyldimethylsilyl)oxy)methyl)-N-(5-cyano-4-(2-methoxyethoxyl)pyridin-2-yl)-7-(dimethoxymethyl)-3,4-dihydro-1,8-naphthyridine-1(2H)-carboxamide (intermediate 37, 98 mg, 0.171 mmol) in THF (1 ml) and H2O (1 ml) was added conc. HCl (0.5 ml), the reaction mixture was stirred at room temperature for 6 h. The reaction mixture was poured into sat. aq. NaHCO3 and extracted with DCM (2×). The organic phase was then dried over Na2SO4, filtered and evaporated. Trituration of the crude material in EtOAc/heptanes followed by drying under vacuum furnished the title compound as a colorless powder.

Workup

  1. extractionextracted with DCM (2×)
  2. dry with materialThe organic phase was then dried over Na2SO4
  3. filtrationfiltered
  4. customevaporated
  5. customby drying under vacuum

Sources & evidence

ORD record
ord-afb863eb3e9444cdb6f022ec0386a678
Source dataset
uspto-grants-2016_02
Patent number
US09266883B2

Reaction notes

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