中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
6,7-二甲氧基-1(3h)-异苯并呋喃酮 | meconin | 569-31-3 | C10H10O4 | 194.187 |
—— | 6,7-dimethoxy-3-(carbamoylmethylthio)isobenzofuran-1(3H)-one | 1338244-95-3 | C12H13NO5S | 283.305 |
—— | 6-<(thiosemicarbazono)methyl>-2,3-dimethoxybenzoic acid | 26342-02-9 | C11H13N3O4S | 283.308 |
—— | 6-<(benzoylhydrazono)methyl>-2,3-dimethoxybenzoic acid | 98670-07-6 | C17H16N2O5 | 328.324 |
—— | 2,3-dimethoxy-6-(2-methoxy-2-methoxycarbonylvinyl)benzoic acid | 404356-54-3 | C14H16O7 | 296.277 |
The reactions of isoquinoline and phthalazine Reissert compounds with phthalaldehydic acids and their derivatives have been investigated as a means of synthesizing 1-(3-phthalidyl)isoquinolines. Of a variety of conditions tried those involving phase transfer were found, in general, to be the most suitable. The products, which are analogues of the convulsant alkaloid bicuculline, showed weak central nervous system depressant activity.
Several 3-aminobenzylphthalides have been prepared by reactions of 3- (2-oxo-1-phenylpropyl)-phthalides with hydrazoic acid or by the Beckmann rearrangement. The corresponding reactions with 3-(2- oxoindanyl)phthalides showed limited success but led to a new synthesis of phthalide-isoquinoline alkaloids. Preliminary biological testing of some of these derivatives indicates that they only have weak central nervous system activity.