Bridged catharanthus alkaloid dimers, their preparation and formulations containing them
申请人:ELI LILLY AND COMPANY
公开号:EP0005620A1
公开(公告)日:1979-11-28
Novel bridged vinca dimers are described, of the following formula;
wherein each R is the same or different residue of an indole-dihydroindole alkaloid of the general formula:
wherein
R' is OH or O-CO-CH3;
R2 is CH3, H or CHO:
when taken singly, one of R3 and R4 is H or OH, and the other is C2H5, and R5 is H; and when R4 and R5 are taken together, they form an a-epoxide ring and R3 is C2H5;
X is S, O, Se-Se, NH, N-[(CH2)m -CH2-NH-R) or (CH2)p wherein p and each n are 0,1, 2, 3 or 4; and m is 1 or 2; and
pharmaceutically-acceptable acid addition salts thereof.
The compounds are useful pharmaceuticals especially as oncolytic agents. They are prepared by reacting the corresponding azide of an indole-dihydronidole alkaloid with an appropriate diamine or triamine. Some of the intermediates employed in this preparation are novel, namely those having the structure:
R5-NH-CH2-(CH2)n-Q'-(CH2)n-CH2-NH2 where R6 is the group R defined above in which R' is OH and R2 is CH3 or H, and Q' is S, S-S, Q, Se-Se, or (CH2)p where n and p is 0,1,2,3 or 4.
所述的新型桥接长春花二聚体如下式所示;
其中每个 R 是通式中吲哚-二氢吲哚生物碱的相同或不同残基:
其中
R' 是 OH 或 O-CO-CH3;
R2 是 CH3、H 或 CHO:
单个时,R3 和 R4 中的一个是 H 或 OH,另一个是 C2H5,R5 是 H;当 R4 和 R5 合在一起时,它们形成一个环氧化物环,R3 是 C2H5;
X 是 S、O、Se-Se、NH、N-[(CH2)m -CH2-NH-R) 或 (CH2)p,其中 p 和每个 n 是 0、1、2、3 或 4;m 是 1 或 2;以及
其药学上可接受的酸加成盐。
这些化合物是有用的药物,特别是作为溶瘤剂。它们是通过吲哚-二氢亚硝基生物碱的相应叠氮化物与适当的二胺或三胺反应制备的。制备过程中使用的一些中间体是新型的,即具有以下结构的中间体:
R5-NH-CH2-(CH2)n-Q'-(CH2)n-CH2-NH2,其中 R6 是上面定义的基团 R,其中 R' 是 OH,R2 是 CH3 或 H,Q'是 S、S-S、Q、Se-Se 或 (CH2)p,其中 n 和 p 是 0、1、2、3 或 4。