摘要:
The present invention refers to tachykinins antagonists of general formula (I) ##STR1## their preparation and pharmaceutical compositions containing them.
摘要:
A description is given of tachykinin receptor antagonists having general formula (I) ##STR1## their preparation and use in pharmaceutical formulations.
摘要:
The present invention refers to tachykinins antagonists of general formula (I) ##STR1## their preparation and pharmaceutical compositions containing them.
摘要:
A process is disclosed for the preparation of compounds of formula I: ##STR1## wherein R is hydrogen, lower alkyl, trichloroethyl, benzyl, p-nitrobenzyl, acetoxymethyl, pivaloyloxymethyl, phthalidyl, or a --CH(CH.sub.3)OCOOEt group;R.sup.1 is --CH.sub.2 OH, --CHO, --CH.sub.2 SH, --CH.sub.2 NH.sub.2, --CH.sub.2 OCOR.sup.2, --COOR.sup.2, --CH.sub.2 NHCOR.sup.2, --CH.sub.2 OR.sup.3, or --CH.sub.2 SR.sup.4 where R.sup.2 is a lower alkyl, aryl or a heterocyclic ring, R.sup.3 is a lower alkyl, benzyl, or trityl, and R.sup.4 is a five- or six-member heterocyclic ring containing one or more heteroatoms,which comprises reacting a 4-acetoxy azetidinone with a .beta.-thioketoester to form a mixture, reacting said mixture with thionyl chloride followed by reaction with a phosphine and a base, ozonolyzing and heating to obtain the compounds of formula I.
摘要:
8-fluoro-anthracyclines of formula (I) have anti-tumor activity. ##STR1## wherein: R is chosen in the group consisting of H, OH, OR.sub.4 wherein R.sub.4 is chosen in the group consisting of CHO, COCH.sub.3, acyl derivative of a carboxylic acid containing up to 6 carbon atoms; R.sub.1 is chosen in the group consisting of: H, OH, OCH.sub.3 ; R.sub.2 is chosen in the group consisting of: H, OH, NH.sub.2 R.sub.3 is chosen in the group consisting of: H, OH, NH.sub.2, residue of formula (A) ##STR2## The compounds are characterized by having cis-stereochemistry between the groups 8--F and 9--OH. Their preparation and pharmaceutical compositions containing them are also described.
摘要:
New 8-fluoroanthracycline derivatives of formula I possessing antitumoral properties are described, together with their preparation and pharmaceutical compositions containing them.
摘要:
This invention relates to polyaminopyrrolecarboxyamide derivatives of general formula (I) and their pharmaceutically acceptable salts, in which A represents a chemical bond or an aromatic or heteroaromatic radical, and:if A is a chemical bond, R is hydrogen, alkyl, dialkylaminoalkyl, alkenyl, cycloalkyl, arylalkyl, arylalkenyl, haloalkyl, or an aromatic or heteroaromatic radical;whereas if A is an aromatic or heteroaromatic radical, R is nitro, amino or formylamino;n is 0 or a whole number between 1 and 4;Z is an alkylene or aromatic radical. ##STR1##
摘要:
There is disclosed a process for the manufacture of azetidinones related to nocardicin having the formula ##STR1## wherein R is a saturated or unsaturated alkyl having from 1 to 6 carbon atoms, .alpha.-aminobenzyl, benzyl, free or substituted phenyl, or a free or substituted heterocyclic;R.sub.1 is hydrogen, alkyl having from 1 to 4 carbon atoms, trimethylsilyl, trichloroethyl, benzhydryl or benzyl; andR.sub.2 is a free or substituted phenyl, or a free or substituted heterocyclic, using the same starting compound, but with the possibility of proceeding to the final compound via two somewhat different routes. A number of novel intermediates are also disclosed.