Total Synthesis of Oxazole- and Cyclopropane-Containing Epothilone B Analogues by the Macrolactonization Approach
摘要:
AbstractIn order to probe structure‐activity relationships in the epothilone area, two series of epothilone B analogues have been designed and synthesized. The first series containing an oxazole moiety in place of a thiazole on the side chain was constructed by utilizing key intermediates 7–9 or 10, 12, and 13 (Scheme 1), whereas the second series containing an ethano group instead of the gem‐dimethyl group at position 4 was synthesized from fragments 42 and 43. A Yamaguchi‐type macrolactonization reaction was used to construct the macrocycle from a secoacid, which was assembled, in both cases, by means of a) an aldol reaction, b) an Enders alkylation, and c) a Wittig‐type reaction. This convergent strategy provided access to oxazole analogues 2,4,29–32 and 4,4‐ethano derivatives 3,40,60–63 for biological studies.
Total Synthesis of Oxazole- and Cyclopropane-Containing Epothilone B Analogues by the Macrolactonization Approach
摘要:
AbstractIn order to probe structure‐activity relationships in the epothilone area, two series of epothilone B analogues have been designed and synthesized. The first series containing an oxazole moiety in place of a thiazole on the side chain was constructed by utilizing key intermediates 7–9 or 10, 12, and 13 (Scheme 1), whereas the second series containing an ethano group instead of the gem‐dimethyl group at position 4 was synthesized from fragments 42 and 43. A Yamaguchi‐type macrolactonization reaction was used to construct the macrocycle from a secoacid, which was assembled, in both cases, by means of a) an aldol reaction, b) an Enders alkylation, and c) a Wittig‐type reaction. This convergent strategy provided access to oxazole analogues 2,4,29–32 and 4,4‐ethano derivatives 3,40,60–63 for biological studies.
[DE] VERFAHREN FÜR DIE HERSTELLUNG VON C1-C15-FRAGMENTEN VON EPOTHILONEN UND DEREN DERIVATEN<br/>[EN] METHOD FOR PRODUCING C1-C15 FRAGMENTS OF EPOTHILONES AND THE DERIVATIVES THEREOF<br/>[FR] PROCEDE DE FABRICATION DE FRAGMENTS C1-C15 D'EPOTHILONES ET DE LEURS DERIVES
申请人:SCHERING AG
公开号:WO2005003071A1
公开(公告)日:2005-01-13
Die vorliegende Erfindung beschreibt ein Verfahren für die Herstellung von C1-C15-Fragmenten von Epothilonen und deren Derivaten, bei dem ein C1 - C6-Fragment mit einem C7 -C12-Fragment zu einem C1 - C12-Fragment verknüpft, und dieses dann mit einem C13 - C15-Fragment zu dem herzustellenden C1 - C15-Epothilon-Vorprodukt umgesetzt wird. Die so erhaltenen C1 - C15-Epothilon-Vorprodukte lassen sich nach bekannten Methoden zu den eigentlichen Wirkstoffen umsetzen. Die Erfindung betrifft außerdem die entsprechenden C1 - C12-Fragmente.
Method for producing c1-c15 fragments of epothilones and the derivatives thereof
申请人:Klar Ulrich
公开号:US20070142675A1
公开(公告)日:2007-06-21
This invention describes a process for the production of C
1
-C
15
-fragments of epothilones and derivatives thereof, in which a C1-C6-fragment is linked with a C7-C12-fragment to a C1-C12-fragment, and the latter then is reacted with a C13-15-fragment to form the C1-C15 initial epothilone product that is to be produced. The thus obtained C1-C15 initial epothilone products can be reacted according to known methods to form the actual active ingredients. In addition, the invention relates to the corresponding C1-C12-fragments.
Epothilone derivatives and methods for making and using the same
申请人:——
公开号:US20030023082A1
公开(公告)日:2003-01-30
The present invention relates to bicyclic compounds wherein one of the cyclic moieties is a 16-membered macrocycle and to methods for making and using these compounds. The present invention provides compounds of the formula
1
wherein:
R
1
, R
2
, and R
3
are each independently hydrogen, methyl or ethyl;
R
4
is hydrogen, hydroxyl, fluoro, oxo, oximino, or NRR′ where R and R′ are independently hydrogen, C
1
-C
10
aliphatic, aryl or alkylaryl;
R
5
is hydrogen, oxo, or C
1
-C
10
aliphatic;
R
6
is hydrogen, hydroxyl, oxo, C
1
-C
10
aliphatic, C
1
-C
10
alkylester, or halide, or optionally R
5
and R
6
together form a carbon-carbon bond;
R
7
is hydrogen, methyl, ethyl, methoxy, or OH;
X is fused substituted or unsubstituted heterocyclo;
Y is substituted or unsubstituted heterocyclo;
R
9
is aryl or —CH═C(Me)-Aryl; and,
W is O or NR
8
where R
8
is hydrogen, C
1
-C
10
aliphatic, aryl or alkylaryl.
New effector conjugates, process for their production and their pharmaceutical use
申请人:Klar Ulrich
公开号:US20050234247A1
公开(公告)日:2005-10-20
Conjugates of epothilones and epothilone derivatives (as effectors) with suitable biomolecules (as recognition units) are described. Their production is carried out by the effectors being reacted with suitable linkers, and the compounds that are produced are conjugated to the recognition units. The pharmaceutical use of conjugates for treating proliferative or angiogenesis-associated processes is described.
METHODS, KITS, AND COMPOUNDS FOR DETERMINING RESPONSIVENESS TO TREATMENT OF A PATHOLOGICAL DISORDER BY EPOTHILONES
申请人:Hoffmann Jens
公开号:US20090076098A1
公开(公告)日:2009-03-19
The invention provides methods, kits and compounds for determining the potential responsiveness of a subject suffering from a pathological disorder, including non-small cell lung cancer (NSCLC), to treatment with an epothilone by analyzing the gene expression profile and/or certain molecular markers in a sample obtained from said subject. The invention further relates to methods, compounds and uses of said compounds for treating subjects suffering from said pathologic disorder, optionally in combination with other therapeutic agents. Also provided are genes and/or proteins encoded by them whose expression level have been determined to differ between epothilone responders and epothilone non-responders.