1,4-Dioxane → 1,1-dimethylethyl N-((5-fluoro-4-hydroxy-1,1-dimethyl-2-oxo-naphthalen-3-yl)carbonyl)glycinate

反応式

CCN([CH:7]([CH3:9])[CH3:8])C(C)C.Cl.[NH2:11][C@H:12]([C:17]([OH:19])=[O:18])C(C)(C)C.[F:20][C:21]1[CH:30]=[CH:29][CH:28]=[C:27]2[C:22]=1[C:23]([OH:39])=[C:24]([C:34](OCC)=[O:35])[C:25](=[O:33])[C:26]2([CH3:32])[CH3:31].O1CCOC[CH2:41]1>>[F:20][C:21]1[CH:30]=[CH:29][CH:28]=[C:27]2[C:22]=1[C:23]([OH:39])=[C:24]([C:34]([NH:11][CH2:12][C:17]([O:19][C:7]([CH3:8])([CH3:9])[CH3:41])=[O:18])=[O:35])[C:25](=[O:33])[C:26]2([CH3:32])[CH3:31]

参加物

反応物 4

HCID 312751,4-Dioxane

HCID 81531Diisopropylethylamine

HCID 123146853-Methyl-L-valine hydrochloride

HCID 67099744Ethyl 5-fluoro-4-hydroxy-1,1-dimethyl-2-oxo-naphthalene-3-carboxylate

生成物 1

HCID 670996891,1-dimethylethyl N-((5-fluoro-4-hydroxy-1,1-dimethyl-2-oxo-naphthalen-3-yl)carbonyl)glycinate

実験手順

DIPEA (0.14 mL, 809 mmol, tert-butylglycine hydrochloride (136 mg, 809 μmol), and ethyl 5-fluoro-4-hydroxy-1,1-dimethyl-2-oxo-naphthalene-3-carboxylate (150 mg, 539 μmol) were heated to 75° C. in dioxane (4 mL) for 3 hours. The resulting mixture was cooled to room temperature and concentrated in vacuo. The residue was purified by flash chromatography to give 116 mg of 1,1-dimethylethyl N-((5-fluoro-4-hydroxy-1,1-dimethyl-2-oxo-naphthalen-3-yl)carbonyl)glycinate as a white solid. MS m/e=386 (M+Na)+.