Thioester tethered organosilatranes were synthesized. The substituent effect on the absorption spectra and potential for binding with Cu2+were explored.
巯酯键合的有机硅环烷已合成。研究了取代基对吸收光谱的影响以及与Cu2+结合的潜力。
Highly Enantioselective Approach to Geminal Bisphosphonates by Organocatalyzed Michael-Type Addition of β-Ketoesters
developed for the asymmetricsynthesis of bisphosphonate derivatives, a class of pharmaceutically important molecules. Cheap and commercially available dihydroquinine effectively catalyzed conjugate additions of cyclic beta-ketoesters to ethylidenebisphosphonate esters, leading to optically active geminal bisphosphonates, bearing an all-carbonsubstitutedquaternarystereocenter, in high yields and
thio-evodiamine (66c) showed excellent in vitro and in vivo antitumor efficacy with good tolerability and low toxicity. Antitumor mechanism and target profiling studies indicate that compound 66c is the first-in-class triple topoisomerase I/topoisomerase II/tubulin inhibitor. Overall, this study provided an effective strategy for natural product-based drug discovery.
[EN] TRICYCLIC DERIVATIVES OR PHARMACEUTICALLY ACCEPTABLE SALTS THEREOF, THEIR PREPARATIONS AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM<br/>[FR] DERIVES TRICYCLIQUES OU SELS PHARMACEUTIQUEMENT ACCEPTABLES DE CES DERIVES, LEURS PREPARATIONS ET COMPOSITIONS PHARMACEUTIQUES LES CONTENANT
申请人:JE IL PHARMACEUTICAL CO LTD
公开号:WO2004113281A1
公开(公告)日:2004-12-29
The present invention relates to tricyclic derivatives or pharmaceutically acceptable salts thereof, their preparations and pharmaceutical compositions containing them. More precisely, the present invention relates to tricyclic derivatives as colchicine derivatives, pharmaceutically acceptable salts thereof, their preparations and pharmaceutical compositions containing them. Tricyclic derivatives of the present invention show very powerful cytotoxicity to cancer cell lines but were much less toxic than colchicine or taxol, confirmed through animal toxicity test. Tricyclic derivatives of the invention also decrease the volume and weight of a tumor and have a strong angiogenesis inhibiting activity in HUVEC cells. Thus, tricyclic derivatives of the present invention can effectively be used as an anticancer agent, anti-proliferation agent and an angiogenesis inhibitor.