Semi-synthesis and biological activity of γ-lactones analogs of camptothecin
作者:Mingzong Li、Weidong Tang、Fuxing Zeng、Liguang Lou、Tianpa You
DOI:10.1016/j.bmcl.2008.10.074
日期:2008.12
A series of E-ring gamma-lactone camptothecin derivatives were synthesized by semi-synthesis via a three-step domino reaction. Their biological activity was evaluated on two types of human tumor cell lines A549 and HT-29 with sulforhodamine-B (SRB) method. The antitumor activity of these compounds was lower than SN-38, only compound 12c was found to be close to the activity of Topotecan. The structure-activity
The present invention provides pyridinonyl PDK1 inhibitors and methods of treating cancer using the same.
本发明提供了吡啶基PDK1抑制剂及其使用方法,用于治疗癌症。
N-Monohydroxypropylamide, N-Dihydroxypropylamide und deren Acetonoide der all-E- und 13-Z-Retinsäure, Verfahren zu ihrer Herstellung und diese enthaltende pharmazeutische Mittel
申请人:BASF Aktiengesellschaft
公开号:EP0009776A1
公开(公告)日:1980-04-16
Die vorliegende Erfindung betrifft neue N-Hydroxypropylamide der all-E- und 13-Z-Retinsäure der allgemeinen Formel und II, in denen
X und Y ein Wasserstoffatom oder eine Hydroxygruppe darstellen und wengistens einer der Reste X und Y eine Hydroxygruppe bedeuten oder X und Y bilden zusammen mit den sie verbindenden Kohlenstoffatomen einen 2,2-Dimethyl-1,3-dioxolanring, die Herstellung dieser Verbindungen, diese enthaltende pharmazeutische Zubereitungen und ihre Verwendung als Arzneimittel bei der topischen und systemischen Therapie und Prophylaxe von Praekanzerosen und Karzinomen und von dermatologischen Erkrankungen.
Process for preparation of tetrahydropyranyoxyamines
申请人:——
公开号:US20040030160A1
公开(公告)日:2004-02-12
Tetrahydropyranyloxyamines are extremely useful as intermediates in the production of pharmaceuticals and agricultural chemicals, and as raw materials, additives or precursors in the production of perfumes, resins and adhesives. The present invention provides a process for producing a tetrahydropyranyloxyamine from an aminoalcohol which is both simple and produces a high yield. According to the present invention, an aminoalcohol represented by a general formula (1) shown below is reacted with an acid, the obtained aminoalcohol salt is reacted with 3,4-dihydro-2H-pyran, and the obtained tetrahydropyranyloxyamine salt is subsequently reacted with an alkali to form a tetrahydropyranyloxyamine represented by the general formula (2) shown below.
H
2
N—X—OH (1)
1
(wherein in said formula (1) and said formula (2), X represents a methylene group, an ethylene group or a straight chain polymethylene group having 3 to 20 carbon atoms)