Diethyl Ether → N-(10-Methoxymethyl-10H-pyrazino[2,3-b][1,4]benzothiazin-8-ylmethyl)acetamide

反応式

C(O[C:5](=[O:7])[CH3:6])(=O)C.[NH2:8][CH2:9][C:10]1[CH:11]=[CH:12][C:13]2[S:18][C:17]3[N:19]=[CH:20][CH:21]=[N:22][C:16]=3[N:15]([CH2:23][O:24][CH3:25])[C:14]=2[CH:26]=1.C(OCC)C>ClCCl>[CH3:25][O:24][CH2:23][N:15]1[C:14]2[CH:26]=[C:10]([CH2:9][NH:8][C:5](=[O:7])[CH3:6])[CH:11]=[CH:12][C:13]=2[S:18][C:17]2[N:19]=[CH:20][CH:21]=[N:22][C:16]1=2

参加物

実験手順

1 ml of acetic anhydride was added to 5 ml of a solution of 350 mg of 8-aminomethyl-10-methoxymethyl-10H-pyrazino[2,3-b][1,4]benzothiazine in dichloromethane and the resulting mixture was stirred at room temperature for 2 hours. After adding diethyl ether, the precipitate thus formed was taken up by filtration to thereby give 350 mg of the title compound as yellow crystals.