A compound of formula (I)
where one of A
1
, A
2
or A
3
is N, and the others are independently selected from CH or N; ring B is a fused 5 or 6-membered carbocyclic or heterocyclic which is optionally substituted as defined in the specification, and R
1
, R
2
, R
3
, R
4
, and n are as defined in the specification.
The compounds are inhibitors of EphB4 or EphA2 and therefore may be useful in pharmaceutical compositions for the treatment of conditions such as cancer.
2,4-Diamino-9H-pyrimido[4,5-b]indol-5-ols: Synthesis, in vitro cytotoxic activity, and QSAR investigations
作者:Bernd Dotzauer、Renate Grünert、Patrick J. Bednarski、Harald Lanig、Jens Landwehr、Reinhard Troschütz
DOI:10.1016/j.bmc.2006.06.051
日期:2006.11
A series of novel 2,4-diaminopyrimido[4,5-b]indol-6-ols has been synthesized and the in vitro cytotoxic activities were evaluated against four human cancer cell lines originating from solid tumors. An increase in activity was observed when a heteroaromatic ring was annulated on side g of the pyrimido[4,5-b]indole system to give compounds with activities comparable to ellipticine and cisplatin. To understand
Pyridopyrimidines, pharmaceutical compositions and use
申请人:Bayer Aktiengesellschaft
公开号:US04621082A1
公开(公告)日:1986-11-04
Pyridopyrimidines of the formula ##STR1## in which R.sup.1 is optionally substituted aryl or heterocyclic, exhibit circulation active properties, especially renal vasodilating and diuretic action.
The invention concerns pyrimidine compounds of Formula I, or a pharmaceutically acceptable salt thereof,
where A
1
, A
2
A
3
, R
1
, n, R
2
, R
3
, and R
4
are as defined in the description. The present invention also relates to processes for the preparation of such compounds, pharmaceutical compositions containing them and their use in the manufacture of a medicament for use as an antiproliferative agent in the prevention or treatment of tumours or other proliferative conditions which are sensitive to the inhibition of EphB4 kinases.
Pyridopyrimidine, mehrere Verfahren zu ihrer Herstellung sowie ihre Verwendung als Arzneimittel
申请人:BAYER AG
公开号:EP0189045A2
公开(公告)日:1986-07-30
Die vorliegende Erfindung betrifft neue Pyridopyrimidine der allgemeinen Formel
in welche R1 bis R7 die in der Beschreibung angegebene Bedeutung haben, mehrere Verfahren zu ihrer Herstellung sowie ihre Verwendung als Arzneimittel, insbesondere in kreislaufbeeinflussenden Mitteln.