Abstract: A process for the preparation of fibrates of formula I in which R1 is a halogen atom, a 2,2-dichloro-cyclopropyl group, a (4-chlorophenyul)-hydroxymethyl group, a-4-chlorobenzoyl group or a 2-(4-chlorobenzamido)-ethyl group, and R2 is hydrogen or a C1-C4 alkyl group.
Abstract: Cross-linked hyaluronic acids produced by the reaction of the carboxylic acid groups of hyaluronic acid and a polyamine and the sulfated and hemisuccinylated derivates thereof. The cross-linked hyaluronic acids are useful for various pharmaceutical and medical purposes.
Abstract: Gabapentin free from mineral acids anions is obtained by precipitating from a gabapentin aqueous solution a corresponding hydroxybenzoate, from which pure gabapentin is subsequently obtained by dissolution in a lower alcohol and treatment with a tertiary base.
Abstract: A process for the preparation of cross-linked polysaccharides containg carboxy groups. The process comprises a first step of activating the carboxy groups in an anhydrous aprotic solvent and then reacting with a polyamine. The cross-linked polysaccharide may be subjected to sulfonation of the five hydroxy groups.
Abstract: A method for the treatment of lactobacilli cultures is disclosed, characterized in that said cultures are added with an aliquot of culture supernatant of pathogenic microorganisms, or with the same pathogenic microorganisms optionally suitably inactivated. In particular, Lactobacillus gasseri BCCM LMG P-18137, Lactobacillus gasseri BCCM LMG P-17632 and Lactobacillus crispatus BCCM LMG P-17631.
Abstract: 9-[(2-Hydroxyethoxy)methyl]guanine (acyclovir) dihydrate sodium salt and the process for the preparation thereof comprising the dissolution of acyclovir monosodium salt in an aqueous medium and the precipitation of the resultant dihydrate sodium salt in an organic solvent.
Abstract: A method for the preparation of 4-(nitrophenyl)-dihydro-pyridines by reacting a benzaldehyde with an acetoacetate and reacting the resulting benzylidene derivative with an enamine derivative. Both reactions are catalyzed by dimethylamine benzoate or p-anisate.
Abstract: An improved process for the preparation of Nabumetone, which comprises the following steps:a) condensation between 6-methoxy-naphthaldehyde I and t-butyl acetoacetate II, to give 3-t-butoxycarbonyl-4-(6'-methoxy-2'-naphthyl)-but-3-en-2-one III as an E/Z mixture;b) hydrogenation of III in the presence of a palladium catalyst, to give 3-t-butoxycarbonyl-4-(6'-methoxy-2-naphthyl)-butan-2-one IV;c) cleavage of the t-butyl ester by acid catalysis; andd) recrystallization of the crude with methanol.
April 24, 1998
Date of Patent:
September 21, 1999
Walter Cabri, Domenico Magrone, Roberto Angelini, Erminio Oldani
Abstract: Salts of formula RCOOR'R".sub.2 N.sup.+ (CH.sub.2).sub.n OH wherein R represents the alkenyl radical of a C.sub.20 -C.sub.22 omega-3-polyunsaturated acid; R' represents a hydrogen atom or a C.sub.1 -C.sub.2 alkyl radical; R" represents R', as above defined, or (CH.sub.2).sub.n OH hydroxyalkyl radical where n is 2 or 3; and their use as cardiovascular agents.
Abstract: Peptides endowed with antiinflammatory activity consisting of 25 aminoacids having a sequence with an homology of at least 25% with the 1-25 fragment of the 10 Kda heat shock protein from Mycobacterium tuberculosis.
Abstract: Derivatives of bicyclic heterocycles comprising a pyrimidone ring fused to another 5, 6, or 7 membered nitrogen heterocycle which is C-substituted, through a methylene bridge, by a biphenyl group.
December 18, 1996
Date of Patent:
September 8, 1998
Istituto Luso Farmaco D'Italia
Aldo Salimbeni, Davide Poma, Anna Renzetti, Carlo Scolastico
Abstract: Naproxene ((+)-6-methoxy-.alpha.-methyl-2-naphthaleneacetic acid) is recovered from the corresponding racemic acid by treatment of the latter with N-substituted R-(-)-2-amino-1-butanols and recovery of the resulting diastereomeric salt.
April 16, 1996
Date of Patent:
June 2, 1998
Pierre Loosen, Gabriele Breviglieri, Bruno Giagomo, Sergio Contrini, Cineia Assanelli