申请人:MITSUBISHI KASEI CORPORATION
公开号:EP0214905A2
公开(公告)日:1987-03-18
A tetrahydroisoquinoline derivative represented by the following general formula;
wherein R' represents hydrogen atom or methyl group, and X1, X2, Y' and Y2 are defined as follows:
(1) X' represents -OH,
or OR2 wherein R2 represents lower alkyl group, when X2, Y' and Y2 represent hydrogen atom;
(2) X' and X2 are jointed together to represent oxo group (=O), when Y' and Y2 represent hydrogen atom, or
(3) Y' and Y2 are jointed together to represent oxo group (=O), when X' and X2 represent hydrogen atom, which is useful as an intermediate in preparation of Cotarnine.
由以下通式代表的四氢异喹啉衍生物;
其中 R' 代表氢原子或甲基,X1、X2、Y' 和 Y2 定义如下:
(1) X' 代表-OH
或 OR2,其中 R2 代表低级烷基,当 X2、Y' 和 Y2 代表氢原子时;
(2) 当 Y'和 Y2 代表氢原子时,X'和 X2 连接在一起代表氧代基团(=O),或
(3) 当 X' 和 X2 代表氢原子时,Y'和 Y2 连接在一起代表氧代基团(=O)。