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    • 1. 发明申请
    • METHOD FOR THE PREPARATION OF 3-DESOXY-4-ENE STEROIDS
    • 制备3-脱氧-4-烯酮甾体的方法
    • WO1990011290A1
    • 1990-10-04
    • PCT/DE1990000183
    • 1990-03-08
    • SCHERING AKTIENGESELLSCHAFTWINTERFELDT, EkkehardTILSTAMM, UlfHOFMEISTER, HelmutLAURENT, Henry
    • SCHERING AKTIENGESELLSCHAFT
    • C07J11/00
    • C07J11/00
    • The invention concerns a method for the preparation of 3-desoxy-4-ene steroids of the general formula I in which R1, R2 and R3 are a hydrogen atom or a methyl group, R4 is a lower alkyl group, a phenyl group or a free, esterified or etherified hydroxyl group, R5 is a hydrogen atom, a vinyl group or the -C=CR6 grouping, R6 being a hydrogen atom, an alkyl group with at the most 4 carbon atoms or a halogen atom, X is a methylene group, a fluoromethylene group, an ethylidene group or a vinylidene group, Y and U are a methylene group or an ethylidene group, and Z is a methylene group, an ethylidene group, a vinylidene group, a chloromethylene group or a hydroxymethylene group, and in which the bonds are three single bonds, or a double bond and two single bonds, or a conjugated double bond. The 3-oxo-4-ene steroid is reduced using a reaction mixture comprising trifluoroacetic or trichloroacetic acid, optionally additional carboxylic acid, and sodium borohydride.
    • 本发明涉及制备通式Ⅰ的3-脱氧-4-烯类固醇的方法,其中R1,R2和R3为氢原子或甲基,R4为低级烷基,苯基或 游离的,酯化的或醚化的羟基,R5是氢原子,乙烯基或-C = CR6基,R6是氢原子,具有最多4个碳原子的烷基或卤素原子,X是亚甲基 亚乙基,亚乙烯基,Y和U是亚甲基或亚乙基,Z是亚甲基,亚乙基,亚乙烯基,氯亚甲基或羟基亚甲基,和 其中键是三个单键,或双键和两个单键,或共轭双键。 使用包含三氟乙酸或三氯乙酸,任选的另外的羧酸和硼氢化钠的反应混合物还原3-氧代-4-烯类固醇。
    • 2. 发明申请
    • CEPHALOSTATIN ANALOGUES AND THEIR USE AS ANTI-TUMOUR AGENTS
    • Cephalostatin类似物及其作为抗肿瘤药
    • WO1994029318A1
    • 1994-12-22
    • PCT/EP1994001858
    • 1994-06-03
    • SCHERING AKTIENGESELLSCHAFTWINTERFELDT, EkkehardKRAMER, AndreasULLMANN, UlrikeLAURENT, Henry
    • SCHERING AKTIENGESELLSCHAFT
    • C07D491/22
    • C07D491/22
    • Described are synthetic cephalostatin analogues of general formula (I) in which (a) A and A' are each an R-CO-O- alkanoyloxy group, R being a straight-chain or branched-chain C1-C7 alkyl group, and B and D together and B' and D' together are each an additional C-C bond or (b) A' is an R-CO-O- alkanoyloxy group, R being a straight-chain or branched-chain C1-C7 alkyl group, and B' and D' together are an additional C-C bond and A and B together are a keto oxygen atom and D is a hydrogen atom or (c) A is a beta -hydroxy group and B and D are each a hydrogen atom and A' and B' together are keto oxygen atom and D' is a hydrogen atom or (d) A and A' are each a beta -hydroxy group and B, D, B' and D' are each a hydrogen atom. Such cephalostatin analogues correspond largely in their structure and substituents to the naturally occurring but only difficultly obtainable cephalostatin 1 and cephalostatin 7. The synthetic analogues possess, like the naturally occurring products, exceptional cytotoxic power and are therefore suitable for use in the preparation of drugs (anti-tumour agents).
    • 它可以是通式(I),其中a)A和A“各自代表烷酰氧基时R-CO-O-,其中R为直链或支链C1至C7烷基,B和D和的合成制备cephalostatin类似物 b“和D”各自一起代表一个附加CC键,或b)“其中R代表烷酰氧基时R-CO-O-为直链或支链C1至C7烷基,b”和D“一起是一个额外的 CC键,并且A和B一起代表酮基氧原子,D表示氢原子,或c)是β--ständige羟基和B和D每一个代表氢原子,A“和B”一起代表酮基氧原子和D“为氢原子 或d)A和A“各-ständige为β羟基基团和B,D,B”和D“各自代表一个氢原子被描述,其在它们的结构和替代基本上与天然存在的,但只有非常有限的访问cephalostatins 1 和图7相对应。 合成类似物具有 - 如Naturstoffe-一个特殊的细胞毒性效力,并因此可用于药物(抗肿瘤剂)的制备有用的是合适的。