The synthesis of a new benzothiazine derivative, related to oxicams, synthesized from natural safrole
作者:Carlos A. M. Fraga、Eliezer J. Barreiro
DOI:10.1002/jhet.5570290652
日期:1992.10
The synthesis of the new derivatives, 2-methyl-6,7-methylenodioxy-2H-1,2-benzothiazin-3-one-4-(N-phenyl)carboxamide 1,1-dioxide (6a) from natural safrole (5) is described. The principal feature of this route is brevity and the high overall yield, producing the new analogue in ca. 35% from the natural product.
从天然黄樟脑合成新的衍生物2-甲基-6,7-甲基烯二氧基-2 H -1,2-苯并噻嗪-3-one-4-(N-苯基)羧酰胺1,1-二氧化物(6a)(描述5)。这条路线的主要特点是简洁和高总产量,在大约1年内产生了新的类似物。天然产品的35%。