6-amino anthracyclines, process for their preparation and use thereof
    1.
    发明授权
    6-amino anthracyclines, process for their preparation and use thereof 失效
    6-氨基蒽环霉素,其制备及使用方法

    公开(公告)号:US4891360A

    公开(公告)日:1990-01-02

    申请号:US73109

    申请日:1987-07-14

    CPC分类号: C07H15/252

    摘要: Anthracycline glycosides having the general formula (A): ##STR1## wherein R.sub.1 is hydrogen, hydroxy or methoxy; R.sub.2 is amino, R.sub.3 is hydrogen or hydroxy and X is hydrogen; and their pharmaceutically acceptable salts; are antitumor agents. The compounds are obtained by reduction of the corresponding 6-nitro derivatives with stannous chloride in presence of sodium acetate or with palladium or charcoal in presence of cyclohexene.

    摘要翻译: 具有通式(A)的蒽环酸苷:其中R1是氢,羟基或甲氧基; R2是氨基,R3是氢或羟基,X是氢; 及其药学上可接受的盐; 是抗肿瘤剂。 该化合物是通过在乙酸钠存在下用氯化亚锡或在环己烯存在下用钯或炭还原相应的6-硝基衍生物而获得的。

    Biologically active heptapeptides
    2.
    发明授权
    Biologically active heptapeptides 失效
    生物活性七肽

    公开(公告)号:US4567162A

    公开(公告)日:1986-01-28

    申请号:US624820

    申请日:1984-06-26

    摘要: There are provided peptides of the formulaX-Val-Pro-Leu-Gly-Trp-A-Ywherein X represents a hydrogen atom or a terminal nitrogen protecting group, A represents a neutral L-.alpha.-amino acid residue and Y represents OH, NH.sub.2 or a group of the formula OR, NHR, NR.sub.2 or NHNHR' wherein R represents a C.sub.1 -C.sub.11 alkyl group optionally substituted, a C.sub.7 -C.sub.14 aralkyl or a phenyl group and R' represents H, any of the groups which R may represent or a protecting group. Pharmaceutically or veterinarily acceptable salt of these peptides are also provided, as are pharmaceutical or veterinary compositions containing peptides or their salts. The peptides which can be prepared by classical solution synthesis, display useful activity on the central nervous system and are active as growth promotors.

    摘要翻译: 提供式X-Val-Pro-Leu-Gly-Trp-AY的肽,其中X表示氢原子或末端氮保护基,A表示中性的L-α-氨基酸残基,Y表示OH,NH 2 或式OR,NHR,NR2或NHNHR'的基团,其中R表示任选取代的C 1 -C 11烷基,C 7 -C 14芳烷基或苯基,R'表示H,R可以表示的任何基团或 一个保护组。 还提供这些肽的药学上或兽医学上可接受的盐,以及含有肽或其盐的药物或兽医组合物。 可以通过经典溶液合成制备的肽显示对中枢神经系统的有用活性,并且作为生长促进剂是活性的。