Camptothecin-skeleton compounds isolated from Mappia foetida and the use
thereof as syntones for novel medicaments as well as therapeutical
agents
    1.
    发明授权
    Camptothecin-skeleton compounds isolated from Mappia foetida and the use thereof as syntones for novel medicaments as well as therapeutical agents 失效
    从益母草中分离的喜树碱骨架化合物及其作为新药物的合成物以及治疗剂

    公开(公告)号:US6121277A

    公开(公告)日:2000-09-19

    申请号:US155960

    申请日:1998-10-06

    CPC分类号: C07D471/14

    摘要: The present invention relates to camptothecin-skeleton alkaloids isolated from Mappia foetida or obtained by semi-synthesis from said alkaloids.Mappia foetida, a plant growing in the Indian subcontinent, is known to contain in its various parts, mainly in the seeds, camptothecin, mappicine and foetidine I and II (EP-A-685481).The alkaloids of the invention have the following general formula: ##STR1## in which R is a hydrogen atom or a methoxy group; R.sub.1 is hydroxy, an OM group wherein M is an alkali cation, preferably sodium or potassium, a C.sub.1 -C.sub.6 alkoxy group, an optionally substituted phenoxy group, an amino, C.sub.1 -C.sub.6 monoalkylamino or C.sub.2 -C.sub.12 dialkylamino group in which the alkyl moiety is optionally substituted by amino groups, an arylamino group; R.sub.2 is a C.sub.1 -C.sub.6 alkyl group or a group of formula COR.sub.3 wherein R.sub.3 is alkyl C.sub.1 -C.sub.6 or optionally substituted phenyl or benzyl.

    摘要翻译: PCT No.PCT / EP97 / 02244 Sec。 371 1998年10月6日第 102(e)日期1998年10月6日PCT提交1997年5月2日PCT公布。 公开号WO97 / 43290 日期:1997年11月20日本发明涉及从益生菌中分离得到的喜树碱骨架生物碱,或通过从所述生物碱半合成得到的生物碱。 已知在印度次大陆生长的植物豌豆,其各个部分主要含有种子,喜树碱,地西泮和氟替丁I和II(EP-A-685481)。 本发明的生物碱具有以下通式:其中R为氢原子或甲氧基; R1是羟基,其中M是碱金属阳离子,优选钠或钾,一个C 1 -C 6烷氧基,任意取代的苯氧基,氨基,C 1 -C 6单烷基氨基或C 2 -C 12二烷基氨基的OM基团,其中烷基部分 任选被氨基取代,芳基氨基; R2是C1-C6烷基或式COR3的基团,其中R3是烷基C1-C6或任选取代的苯基或苄基。