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    • 6. 发明授权
    • Polymer-bound paclitaxel derivatives
    • 聚合物结合紫杉醇衍生物
    • US5473055A
    • 1995-12-05
    • US263832
    • 1994-06-22
    • Nicola MongelliFrancesco AngelucciEnrico PesentiAntonino SuaratoGiovanni Biasoli
    • Nicola MongelliFrancesco AngelucciEnrico PesentiAntonino SuaratoGiovanni Biasoli
    • A61K38/00A61K38/02A61K47/48A61P35/00C07D305/14C07K5/062C07K5/065C07K5/083C07K5/087C07K5/103C07K5/107A61K38/05A61K38/06A61K38/07A61K38/08
    • A61K47/48176C07D305/14
    • A polymer conjugate consisting essentially of: from 90 to 99.9 mol % of units represented by the formula ##STR1## from 0.1 to 5 mol % of units represented by the formula ##STR2## wherein one of R.sub.1 and R.sub.2 is a copolymer residue of the formula ##STR3## and the other one is hydrogen atom; from 0 to 9.9 mol % of units represented by the formula ##STR4## wherein R is a phenyl or t-butoxy group, R.sub.3 is H or an acetyl group, A and A.sub.1 which may be the same or different, represent a chemical single bond, an amino acid residue or peptide spacer selected from .beta.Ala, Gly, Phe-Gly, Phe-Phe-, Leu-Gly, Val-Ala, Phe-Ala, Leu-Phe, Leu-Ala, Phe-Leu-Gly, Phe-Phe-Leu, Leu-Leu-Gly, Phe-Tyr-Ala, Phe-Gly-Phe, Phe-Phe-Gly, Phe-Leu-Gly-Phe, Gly-Phe-Leu-Gly-Phe,Gly-.beta.Ala, Phe-Gly-.beta.Ala, Phe-Phe-.beta.Ala, Leu-Gly-.beta.Ala, Val-Ala-.beta.Ala, Phe-Ala-.beta.Ala, Leu-Phe-.beta.Ala, Leu-Gly-.beta.Ala, Phe-Leu-Gly-.beta.Ala, Phe-Phe-Leu .beta.Ala, Leu-Leu-Gly-.beta.Ala, Phe-Tyr-Ala-.beta.Ala, Phe-Gly-Phe-.beta., Phe-Phe-Gly .beta.Ala, Phe-Leu-Gly-Phe-.beta.Ala or Gly-Phe-Leu-Gly-Phe-.beta.Ala. The compounds are endowed with antitumor activity and show improved water solubility and decreased toxicity in comparison with paclitaxel or its known analogs. A method for their preparation and pharmaceutical compositions containing them are also described.
    • 一种聚合物共轭物,其基本上由以下组成:90至99.9摩尔%的由式(IMAGE)表示的单元,为0.1至5摩尔%的由式IMA图示的单元,其中R 1和R 2之一是式 ,另一个是氢原子; 其中R是苯基或叔丁氧基,R3是H或乙酰基,A和A1可以相同或不同,表示化学单键 ,选自βAla,Gly,Phe-Gly,Phe-Phe-,Leu-Gly,Val-Ala,Phe-Ala,Leu-Phe,Leu-Ala,Phe-Leu-Gly的氨基酸残基或肽间隔子, Phe-Phe-Leu,Leu-Leu-Gly,Phe-Tyr-Ala,Phe-Gly-Phe,Phe-Phe-Gly,Phe-Leu-Gly-Phe,Gly-Phe-Leu-Gly-Phe, βAla,Phe-Gly-βAla,Phe-Phe-βAla,Leu-Gly-βAla,Val-Ala-Ala,Phe-Ala-Ala,Leu-Phe-βAla,Leu-Gly-β Ala,Phe-Leu-Gly-βAla,Phe-Phe-LeuβAla,Leu-Leu-Gly-βAla,Phe-Tyr-Ala-βAla,Phe-Gly-Phe-β,Phe-Phe-Gly β-Ala,Phe-Leu-Gly-Phe-β-Ala或Gly-Phe-Leu-Gly-Phe-β-Ala。与紫杉醇或其已知的类似物相比,这些化合物具有抗肿瘤活性, 。 还描述了其制备方法和含有它们的药物组合物。
    • 10. 发明授权
    • Unsaturated 17.beta.-subsituted 3-carboxy steroids
    • 不饱和的17(BETA) - 使用的3-CARBOXY STEROIDS
    • US5212166A
    • 1993-05-18
    • US886574
    • 1992-05-21
    • Achille PanzeriMarcella NesiEnrico Di Salle
    • Achille PanzeriMarcella NesiEnrico Di Salle
    • A61K31/565A61K31/56A61K31/58A61P5/24A61P5/28A61P13/02A61P15/00A61P17/00A61P17/02A61P17/14A61P35/00A61P43/00C07J20060101C07J41/00C07J43/00
    • C07J43/003C07J41/0066
    • The present invention concerns steroidic 5.alpha.-reductase inhibitors having the following formula (I) ##STR1## wherein Y is oxygen or sulphur;R is a group;a) --OR.sub.4, wherein R.sub.4 is hydrogen or a C.sub.1 -C.sub.6 alkyl group;b) ##STR2## wherein each of R.sub.5 and R.sub.6, independently, is hydrogen or a C.sub.1 -C.sub.6 alkyl group;c) ##STR3## wherein R.sub.7 is hydrogen or a C.sub.1 -C.sub.6 alkyl group and W is a group:(i) ##STR4## wherein R.sub.8 is a C.sub.1 -C.sub.6 alkyl group, a C.sub.5 -C.sub.6 cycloalky group, a C.sub.6 -C.sub.6 cycloalkylalkyl group, a phenyl group or a benzyl group; or(ii) ##STR5## wherein R.sub.9 is a C.sub.1 -C.sub.6 alkyl group or a C.sub.5 -C.sub.6 cycloalkyl group; or(iii) ##STR6## wherein R.sub.5 and R.sub.6 are as defined above; d) ##STR7## wherein each of R.sub.10 and R.sub.11 is, independently, hydrogen or a C.sub.1 -C.sub.6 alkyl group or taken together with the nitrogen atom to which they are linked form a pentatomic or hexatomic saturated heteromonocyclic ring, optionally containing at least one additional heteroatom selected from oxygen and nitrogen, and n is an integer of 2 to 4;R.sub.1 is hydrogen, a C.sub.1 -C.sub.6 alkyl group, a C.sub.5 -C.sub.6 cycloalkyl group, a C.sub.6 -C.sub.9 cycloalkyalkyl group or an aryl group;each of R.sub.2 and R.sub.3 is, independently, selected from the group consisting of hydrogen, C.sub.1 -C.sub.6 alkyl, C.sub.5 -C.sub.6 cycloalkyl, C.sub.6 -C.sub.9 cycloalkylalkyl and aryl or R.sub.2 and R.sub.3, taken together with the nitrogen atom to which they are linked, form a pentatomic or hexatomic saturated heteromonocyclic ring, optionally containing at least one additional heteroatom selected from oxygen and nitrogen; and the symbol ( ) represents a single or a double bond provided that when it is a double bond the hydrogen in the 5.alpha. position doesn't exist and the pharmaceutically acceptable salts thereof.In view of their 5-.alpha. reductase inhibiting activity the compounds of the invention can be useful for the treatment of androgen dependent conditions.