摘要:
Compounds of Formula (I) are described in which the R1 group is as defined in the specification and includes the condensation of the camptothecin molecule in position 7 with a cyclopeptide containing the RGD sequence. Said compounds are endowed both with high affinity for integrin receptors αvβ3 and αvβ5 and with selective cytotoxic activity on human tumour cell lines at micromolar concentrations.
摘要:
The invention relates to a new class of compounds with action inhibiting carnitine palmitoyl transferase (CPT), pharmaceutical compounds which contain at least one new compound according to the invention, and their therapeutic use in the treatment of hyperglycaemic conditions such as diabetes and the pathologies associated with it, congestive heart failure and obesity.
摘要:
Compounds or formula (I) are described, in which the R and R1 groups are as defined here below and include the condensation of the camptothecin molecule in position 20 with a cyclopeptide containing the RGD sequence. Said compounds are endowed both with high affinity for integrin receptors αvβ3 and αvβ5 and with selective cytotoxic activity on human tumour cell lines at micromolar concentrations.
摘要:
Esters of alkanoyl L-carnitines wherein the alkanoyl is a saturated or unsaturated, staight or branched alkanoyl having 2-26 carbon atoms, optionally &ohgr;-substituted with trialkylammonium, dialkylsulfonium, hydroxyl, carboxyl, halogen, methanesulfonyl and hydroxysulfonyl, are useful for preparing pharmaceutical compositions for the treatment of endotoxic shock.
摘要:
6,7-disubstituted-2-aminotetralines of general formula (1) ##STR1## and their pharmacologically acceptable salts, wherein X and Y, identical or different are selected from the group consisting of methoxy, acetoxy and fluoro; and R and R.sub.1, identical or different, are selected from the group consisting of hydrogen, ethyl, propyl, cyclopropylmethyl, 2-hydroxy-2-phenylethyl, 2-hydroxy-2-(4-methylphenyl)ethyl and 2-hydroxy-3-(4-methoxyphenoxy)propyl are endowed with immunomodulator activity.
摘要:
A stereoselective process for preparing 7-[(E)-t-butyloxyiminomethyl]-camptothecin (also known as gimatecan) is herein disclosed. With the addition of further dissolution and precipitation steps carried out in appropriate different solvent mixtures, four new crystalline forms of gimatecan are also obtainable by using the same stereoselective process.
摘要:
Esters of L-carnitine and alkanoyl L-carnitines are described which can be used as cationic lipids for the intracellular delivery of pharmacologically active compounds. New esters of L-carnitine and alkanoyl L-carnitines of formula (I) are also disclosed wherein the R groups are as defined in the description.
摘要:
Compounds are disclosed with the general formula in which the groups are as defined in the description here below and characterized by the presence of polyamine substituents on the imine/oxime residue, such amine groups being in turn protected by suitable protective groups. Said compounds are endowed with potent topoisomerase I inhibiting activity and therefore are useful as medicaments for the treatment of tumors and viral and parasite infections.
摘要:
The present invention describes a process for the industrial production of L-carnitine, comprising the enantioselective reduction of an alkyl 4-chloro-3-oxobutyrate or 4-chloro-3-oxobutyramide. The optically active 3-hydroxy derivative thus obtained is reacted with trimethylamine, obtaining crude L-carnitine, which is then finally purified. The catalyst used for the reduction is a complex of ruthenium bound to a penta-atomic bis-heteroaromatic system. The reduction reaction, performed in controlled conditions of hydrogen pressure, substrate concentration, temperature, and substrate: catalyst molar ratio, enables 4-chloro-3-hydoxybutyrate or 4-chloro-hydroxybutyamide to be obtained in a high yield. The process described, which leads to L-carnitine being obtained, is easily applicable on an industrial scale.