SUBSTITUTED 1,1,2-TRIPHENYLBUTENES AND THEIR USE IN THE TREATMENT AND DIAGNOSIS OF CANCER
申请人:BRITISH TECHNOLOGY GROUP LTD
公开号:EP0638064B1
公开(公告)日:1997-08-13
US5589500A
申请人:——
公开号:US5589500A
公开(公告)日:1996-12-31
[EN] SUBSTITUTED 1,1,2-TRIPHENYLBUTENES AND THEIR USE IN THE TREATMENT AND DIAGNOSIS OF CANCER<br/>[FR] 1,1,2-triphénylbutènes substitués et leur utilisation dans le traitement et le diagnostic du cancer.
申请人:BRITISH TECHNOLOGY GROUP LTD
公开号:WO1993022275A1
公开(公告)日:1993-11-11
(EN) Compounds of general formula (2) wherein n is an integer of from 3 to 10, the iodo substituent is in the 3- or 4- position and R1 and R2, which may be the same or different, represent C1-3 alkyl, especially methyl or ethyl, groups or R1 represents a hydrogen atom and R2 a C1-3 alkyl group or R1 and R2 together with the nitrogen atom to which they are attached represent a saturated heterocyclic group, especially a pyrrolidino group, in the form of their free bases or pharmaceutically acceptable acid addition salts are potent anti-oestrogenic compounds useful for treatment of oestrogen-dependent cancers, especially breast cancers. Compounds where the iodine atom is radioisotopic are useful in radiotherapy or gamma ray imaging of these cancers.(FR) Cette invention décrit des composés de formule (2). Dans cette formule, n représente un entier compris entre 3 et 10, le substituant iodo se trouve en position 3 ou 4 et R1 et R2 qui peuvent être identiques ou différents représentent des groupes alkyle C1-3, plus particulièrement méthyle ou éthyle, ou bien R1 représente un atome d'hydrogène et R2 représente un groupe alkyle C1-3, ou encore R1 et R2 représentent avec l'atome d'azote sur lequel ils sont fixés un groupe hétérocyclique saturé plus spécifiquement un groupe pyrrolidino. Sous forme de leur bases libres ou de leurs sels d'addition acides pharmaceutiquement acceptables, ces composés sont de puissants composés anti-÷strogènes utiles pour traiter les cancers dépendant des ÷strogènes, notamment les cancers du sein. Des composés dans lesquels l'atome d'iode est radio-isotopique sont utiles en radiothérapie ou pour effectuer l'imagerie par rayons gamma de ces cancers.
Substituted 1,1,2-triphenylbutenes and their use in the treatment of
申请人:British Technology Group Limited
公开号:US05589500A1
公开(公告)日:1996-12-31
Compounds of the general formula (2) ##STR1## wherein n is an integer of from 3 to 10, the iodo substituent is in the 3- or 4-position and R.sup.1 and R.sup.2, which may be the same or different, represent C.sub.1-3 alkyl, especially methyl or ethyl, groups or R.sup.l represents a hydrogen atom and R.sup.2 a C.sub.1-3 alkyl group or R.sup.1 and R.sup.2 together with the nitrogen atom to which they are attached represent a saturated heterocyclic group, especially a pyrrolidino group, in the form of their free bases or pharmaceutically acceptable acid addition salts are potent anti-oestrogenic compounds useful for treatment of oestrogen-dependent cancers, especially breast cancers. Compounds where the iodine atom is radioisotopic are useful in radiotherapy or gamma ray imaging of these cancers.
Rationally Designed Analogs of Tamoxifen with Improved Calmodulin Antagonism
作者:Ian R. Hardcastle、Martin G. Rowlands、John Houghton、Iris B. Parr、Gerard A. Potter、Michael Jarman、Karen J. Edwards、Charles A. Laughton、John O. Trent、Stephen Neidle
DOI:10.1021/jm00002a005
日期:1995.1
Computerized molecular modeling studies on the interactions of the antiestrogen tamoxifen (1) and its analogues bound to the calcium-binding protein calmodulin have guided the rational design of more potent antagonists. Compounds with either three or four methylene units in the basic side chain or slim lipophilic 4-substituents were expected to be more potent. All compounds were tested for antagonism of the calmodulin-dependent activity of cAMP phosphodiesterase and for binding affinity to the estrogen receptor from rat uteri. Some compounds were assayed for cytotoxicity against MCF-7 breast tumor cells in vitro. Introduction of lipophilic 4-substituents was accomplished by using palladium(0)-catalyzed coupling reactions with a 4-iodinated precursor. Both the 4-ethynyl (16 and 17) and 4-butyl (18 and 19) compounds were more potent calmodulin antagonists than tamoxifen. Extension of the basic aminoethoxy side chain of 4-iodotamoxifen (3) and idoxifene (2) ((E)-1-[4-[2-(N-pyrrolidino)ethoxy]phenyl]-1-(4-iodophenyl)-2-phenyl-1-butene) by one or two methylene units resulted in modest gains in calmodulin antagonism (10-13). All the compounds assayed retained estrogen receptor binding characteristics. The compound possessing the optimal combination of calmodulin antagonism and estrogen receptor binding was 12 ((E)-1-[4-[3-(N-pyrrolidino)propoxy]phen 1-(4-iodophenyl)-2-phenyl-1-butene) (IC50 = 1.1 mu M, RBA = 23). Correlation between calmodulin antagonism and cytotoxicity was demonstrated for selected compounds.'