摘要:
The present invention relates to novel fluorinated benzodioxane imidazoline derivatives, to their preparation and to their therapeutic applications. The invention is directed more particularly toward the compounds corresponding to the structure of general formula 1: in which: R represents a linear, branched or cyclized alkyl or alkenyl group containing 1 to 7 carbon atoms, or a benzyl group, and the fluorine atom can occupy position 5, 6, 7 or 8, in their racemic form and their dextrorotatory and levorotatory pure enantiomeric forms, and also the addition salts thereof.
摘要:
A method for preparing an optically pure 2-ethyl-2,3-dihydrobenzofurancarboxylic acid of formula II wherein R is a hydrogen atom, halogen, lower alkyl, lower alkoxy or hydroxy is described. ##STR1## The method comprises separating the racemic mixture by selective crystallization with the suitable optically pure enantiomer of 2-phenylglycinol, in a suitable solvent, whereafter the optically pure, crystallized acid of formula II is isolated and recovered. The invention also provides the optically pure 2-ethyl-2,3-dihydro-benzofurancarboxylic acid derivative thus obtained and the use thereof for the preparation of an optically pure derivative of efaroxan.
摘要:
The invention relates to fluorescent derivatives of cyanines conjugated with a polyamine group, having formula (I), or a pharmaceutically acceptable salt thereof. The invention also relates to the method for preparing said derivatives, diagnostic compositions containing same and the use thereof as a diagnostic probe for the detection of cancer tumors, in particular in vivo.
摘要:
The present invention relates to a new process for the preparation of (poly)aminoalkylaminoacetamide derivatives of epipodophyllotoxin and salts thereof, characterised in that it comprises a step of peptide coupling of 4-amino-4′-demethylepipodophyllotoxin with an amine-containing reactant having protecting groups.
摘要:
The invention relates to a method for synthesizing 4.beta.-amino-4′-demethyl-4-desoxypodophyllotoxin of formula (1), characterized by comprising the following successive steps: a) reacting, in a pure weak acid or in a mixture consisting of acid, water and of organic solvent, without another solvent, at a temperature higher than the ambient temperature, thiourea with 4.beta.-halogenoacetamido-4′-demethyl-4-desoxypodophyllotoxin, and; b) recovering the 4.beta.-amino-4′-demethyl-4-desoxypodophyllotoxin.
摘要:
The present invention relates to novel podophyllotoxin derivatives substituted in the 4-position by a substituted (poly)aminoalkylaminoacetamide chain, to their process of preparation and to their use as medicament as anticancer agents.
摘要:
The invention relates to a crystalline compound of 4′-demethyl-4′-phosphate-2″,3″-bispentafluorophenoxyacetyl-4″,6″-ethylidene-β-D-epipodophyllotoxin glucoside in its free form or solvated with ethanol, advantageously provided in the form of a hemiethanolate solvate. The invention also relates to a method for preparing these compounds and to their use as an anticancer drug.
摘要:
The present invention relates to new derivatives of epipodophyllotoxin 4-substituted with an optionally substituted (poly)aminoalkylaminoalkylamide, or alkyl-urea or alkyl-sulfonamide chain, a process for preparing them and their use as a medicine as an anticancer agent.
摘要:
The invention concerns compounds of general formula 1, wherein: A, B, D and E represent one or two nitrogen atoms, the others being carbon atoms; X represents a S or, a O, thereby forming a bicyclic fused heteroaromatic, such as thieno[2,3-b]pyridine, furo[2,3-b]pyridine, thieno[3,2-b]pyridine, furo[3,2-b]pyridine, thieno[2,3-b]pyrazine, furo[2,3-b]pyrazine, thieno[2,3-c]pyridine, furo[2,3-c]pyridine, thieno[3,2-c]pyridine and furo[3,2-c]pyridine; R1 represents a linear or branched C1-C6 alkoxy group, a linear or branched C1-C6 alkylthio group; R2 represents a linear, branched, cyclic C2-C8 group, a 2- or 3-thienylmethyl group, or a benzyl group optionally substituted by one or several halogens, F, Cl, Br, I, C1-C4alkyl, C1-C4 alkoxy, CF3, CN, NO2, OH; and their pharmaceutically acceptable salts. Said compounds are anti-dopaminergic agents.
摘要:
The invention concerns the use of efaroxan or therapeutically-acceptable salts, in its racemic form or in the form of an optically-active isomer, for treating Huntington's disease.