Ammonia → 4-[(2R,3R,4S,5R)-3,4-Dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-3-oxopyrazine-2-carboxamide
反応式
C([O:9][CH2:10][C@@H:11]1[C@@H:15]([O:16]C(=O)C2C=CC=CC=2)[C@@H:14]([O:25]C(=O)C2C=CC=CC=2)[C@H:13]([N:34]2[CH:39]=[CH:38][N:37]=[C:36]([C:40]([NH2:42])=[O:41])[C:35]2=[O:43])[O:12]1)(=O)C1C=CC=CC=1.N>CO>[OH:25][C@@H:14]1[C@H:15]([OH:16])[C@@H:11]([CH2:10][OH:9])[O:12][C@H:13]1[N:34]1[CH:39]=[CH:38][N:37]=[C:36]([C:40]([NH2:42])=[O:41])[C:35]1=[O:43]参加物
4
実験手順
In 4 mL of methanol was dissolved 0.37 g of [(2R,3R,4R,5R)-5-[3-(aminocarbonyl)-2-oxo-1(2H)-pyrazinyl]-3,4-bis(benzoyloxy)tetrahydro-2-furanyl]methyl benzoate. While cooling the solution with ice, gaseous ammonia was introduced until saturation. The reaction mixture was stirred at room temperature for 15 hours, and the solvent was removed under reduced pressure. Methanol was added to the residue, and the precipitate was collected by filtration to obtain 0.12 g of 4-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)tetrahydro-2-furanyl]-3-oxo-3,4-dihydro-2-pyrazinecarboxamide as a light brown-colored solid product.