摘要:
A novel class of esters of mercapto acyl-carnitines is disclosed, wherein the mercapto acyl radical is the radical of saturated mercapto acids having from 2 to 10 carbon atoms. These esters of mercapto acyl-carnitines are prepared e.g. by first preparing the corresponding ester of halogen acyl-carnitine and then substituting therein, by nucleophylic substitution, the --SH group for the halogen atom.These esters of mercapto acyl-carnitines are useful therapeutic agents, e.g. for the treatment of intoxications and burns, and as mucolytic agents.
摘要:
A novel class of mercapto acyl-carnitines is disclosed, wherein the mercapto acyl radical is the radical of saturated mercapto acids having from 2 to 10 carbon atoms. These mercapto acyl-carnitines are prepared, e.g., by first preparing the corresponding halogen acyl-carnitine and then substituting therein, by nucleophylic substitution, the --SH group for the halogen atom.These mercapto acyl-carnitines are useful therapeutic agents, e.g., for the treatment of intoxications and burns and as mucolytic agents. Dithio diacyl carnitines and hydrochloride salts thereof, which are intermediates, are also disclosed.
摘要:
Dithiodiacyl carnitines, intermediates for the preparation of mercaptoacyl-carnitines, are disclosed.These mercapto acyl-carnitines are useful therapeutic agents, e.g. for the treatment of intoxications and burns and as mucolytic agents.
摘要:
A novel class of alkoxy-acyl carnitines, wherein the alkoxy-acyl radical has from 4 to 6 carbon atoms (tipically: methoxypropionyl, ethoxypropionyl and propoxyacetyl) is prepared by reacting a solution of a carnitine salt in an organic solvent with an alkoxy-acyl halogenide, thus obtaining the corresponding salt of alkoxy-acyl carnitine. By eluting an aqueous solution of this salt through a column of an ion exchange resin activated in Cl.sup.- or Br.sup.- form, the chloride or bromide of alkoxy-acyl carnitine is obtained. The alkoxy-acyl carnitines are therapeutically effective in the treatment of cardiac disorders, hyperlipidaemias and hyperlipoproteinaemias.
摘要:
A novel class of carnitine derivatives is disclosed which comprises thiocarnitine and the S-acyl thiocarnitines wherein the acyl radical is the radical of saturated organic acids having from 2 to 10 carbon atoms. The S-acyl thiocarnitines are prepared e.g. by reacting crotonoyl betaine halogenide with the corresponding thio-acid, while thiocarnitine is obtained by hydrolysis of an S-acyl thiocarnitine. These compounds are useful therapeutic agents, e.g. for the treatment of intoxications, liver malfunctions and burns.
摘要:
A process for preparing aromatic aldehydes starting from the corresponding aromatic acid, comprising two steps, the first one consisting of the reaction of said acid with ethyl or isobutyl chlorocarbonate to obtain the corresponding anhydride, and the second one to hydrogenate the thus-obtained anhydride to yield to aldehyde.
摘要:
Process for the production of aromatic alcohol and aldehydes comprising three steps, the first one consisting of reacting an aromatic acid with ethyl or isobutyl chloroformiate to obtain the corresponding mixed anhydride, the second one consisting of the hydrogenation of the mixed anhydride to obtain the corresponding benzyl alcohol, and the third one consisting of the oxidation of the alcohol to the corresponding aldehyde.
摘要:
The present invention relates to a proces for manufacturing L-(-)-carnitine from D-(+)-carnitine or a derivative thereof. D-(+)-carnitine is esterified in order to protect the carboxyl group and subsequently converted to an acyl derivative. The acyl derivative is then converted to a lactone of L-(-)-carnitine. Finally, the lactone is reopened to obtain L-(-)-carnitine.
摘要:
Esters of acyl L-carnitines of general formula (I) ##STR1## wherein R is a straight or branched acyl group having 2 to 16 carbon atoms, in particular isobutyryl and isovaleryl;n is an integer comprised between 7 and 15, particularly 10; and,X- is the anion of a pharmacologically acceptable acid are endowed with potent antimycotic activity particularly against yeast like fungi, such as Candida albicans, the aetiologic agent of candidiasis and against filamentous fungi, such as Aspergillus fumigatus, the aetiologic agent of aspergillosis. Orally or parenterally administrable or topically applicable pharmaceutical compositions comprise an ester of formula (I) as active ingredient.
摘要:
Orally or parenterally administrable pharmaceutical compositions in unit dosage form comprise from about 100 to about 500 mg of one of the compounds of formula (I). ##STR1## wherein R is selected from: 2-(N,N-diisopropyl)aminoethyl,2-aminoethyl,2-N-(pyrrolidin-2-one-1-yl)acetyl aminoethyl,2-phenylethyl,benzyl,2-N-(pyroglutamylglycyl)aminoethyl,2-N-(pyroglutamyl)aminoethyl;Y is either a C--N single bond or the bivalent residue of an aminoacid selected from: ##STR2## are potent enhancers of the learning processes and memory.