申请人:——
公开号:US20040010140A1
公开(公告)日:2004-01-15
A method of synthesis of a bicyclic or polycyclic compound of formula (I) or formula (II) in which: E represents an electrophile; each of R, R1, R2, R3, R6, R7, R8, R9 and X independently represents the common organic substituent groups defined in claim
1;
Y represents C(r12)R13, O, NR14, or S; Z represents O, NR15, S or CR16W; G represents W or X; W represents an electron withdrawing group; X has the same definition as R, and W═W; and each of n and m represents an integer from 0 to 100. The method comprises the steps of (a) activating a compound of formula (III); 8b) subjecting a compound of formula (IV) to nucleophilic addition with the activated form of compound III; (c) subjecting the product of step (b) to ring closing metathesis; and (d) subjecting the product of step (c) to stereoselective ring closure. The methods of invention are useful in the synthesis of candidate pharmaceutical agents or intermediates in drugs synthesis.
1
一种合成式(I)或式(II)的双环或多环化合物的方法,其中:E代表亲电试剂;R、R1、R2、R3、R6、R7、R8、R9和X各自独立地代表权利要求1中定义的常见有机取代基团;Y代表C(r12)R13、O、NR14或S;Z代表O、NR15、S或CR16W;G代表W或X;W代表电子提取基团;X具有与R相同的定义,W═W;n和m各自表示0到100的整数。该方法包括以下步骤:(a)激活式(III)的化合物;(b)将式(IV)的化合物与化合物III的活化形式进行亲核加成;(c)将步骤(b)的产物进行环闭合重排反应;(d)将步骤(c)的产物进行立体选择性环闭合反应。本发明的方法在候选药物或药物合成中间体的合成中有用。