摘要:
La présente invention concerne un procédé de préparation de composés organo- iodés, ainsi que ses intermédiaires de préparation. Plus particulièrement, la présente invention concerne un procédé de préparation de composés organo-iodés utiles en tant qu'intermédiaires de préparation dans la synthèse de produits de contraste iodés.
摘要:
The present invention relates to a process for the preparation of given carboxamido compounds, in particular of 2,4,6-triiodoisophthalic acid derivatives, as useful intermediates for the preparation of X-ray contrast media among which is iopamidol. The said process comprises reacting suitable N-sulfinyl intermediate compounds with a commercially available α-hydroxyacid or a salt thereof.
摘要:
The novel positively charged prodrugs of acetylsalicylic acid and its analogues in the general formula(1) "Structure 1" were designed and synthesized. The compounds of the general formula(1) "Structure 1" indicated above can be prepared from functional derivatives of ASA or its analogues,(for example acid halides or mixed anhydrides), by reaction with suitable alcohols, thiols, or amines. The positively charged amino groups of these pro-drugs not only largely increases the solubility of the drugs, but also bonds to the negative charge on the phosphate head group of membranes and push the pro-drug into the cytosol. The experiment results suggest that the pro-drug, diethylaminoethyl acetylsalicylate.AcOH, diffuses through human skin ~400 times faster than acetylsalicylic acid itself and ~100 times faster than ethyl acetylsalicylate. In plasma, 80% of these pro-drugs can change back to the drug in a few minutes. The pro-drugs can be used medicinally in treating any aspirin-treatable conditions in humans or animals and be administered not only orally, but also transdermally for any kind of medical treatments and avoid most of the side effects of aspirin, most notably GI disturbances such as dyspepsia, gastroduodenal bleeding, gastric ulcerations, and gastritis. Controlled transdermal administration systems of the prodrug enables the aspirin to reach constantly optimal therapeutic blood levels to increase effectiveness and reduce the side effects of aspirin.
摘要:
The present invention in a first aspect relates to novel flavour modulating subtances according to formula (I) and/or edible salts thereof: R 1 -CR 2 (OR 3 )-CO-NR 4 -Y-X (I). It was found that substances represented by formula (I) can advantageously be used to impart desirable flavour, especially taste attributes to foodstuffs, beverages, and pharmaceutics they are incorporated in. In addition said substances are capable of modulating and complementing the sensory impact of other, flavour imparting, substances. Thus, the present flavour modulating substances are advantageously applied in flavour compositions, foodstuffs, beverages and pharmaceutics. Typical examples of flavour modulating substances according to the present invention include N-lactoyl tyramine, N-gluconyl tyramine, N-lactoyl 4-hydroxybenzylamine, N-lactoyl vanillylamine and N-lactoyl-dopamine.
摘要:
This invention provides a class of androgen receptor targeting agents (ARTA). The agents define a new subclass of compounds, which are selective androgen receptor modulators (SARM). Several of the SARM compounds have been found to have an unexpected androgenic and anabolic activity of a nonsteroidal ligand for the androgen receptor. Other SARM compounds have been found to have an unexpected antiandrogenic activity of a nonsteroidal ligand for the androgen receptor. The SARM compounds, either alone or as a composition, are useful for a) male contraception; b) treatment of a variety of hormone-related conditions, for example conditions associated with Androgen Decline in Aging Male (ADAM), such as fatigue, depression, decreased libido, sexual dysfunction, erectile dysfunction, hypogonadism, osteoporosis, hair loss, anemia, obesity, sarcopenia, osteopenia, osteoporosis, benign prostate hyperplasia, alterations in mood and cognition and prostate cancer; c) treatment of conditions associated with Androgen Decline in Female (ADIF), such as sexual dysfunction, decreased sexual libido, hypogonadism, sarcopenia, osteopenia, osteoporosis, alterations in cognition and mood, depression, anemia, hair loss, obesity, endometriosis, breast cancer, uterine cancer and ovarian cancer; d) treatment and/or prevention of acute and/or chronic muscular wasting conditions; e) preventing and/or treating dry eye conditions; f) oral androgen replacement therapy; g) decreasing the incidence of, halting or causing a regression of prostate cancer; and/or h) inducing apoptosis in a cancer cell.
摘要:
A process for preparing substituted aromatic compounds of the general formula (¦¦) or salts thereof: (¦¦) [wherein A is an optionally substituted aromatic homo- or hetero-cycle; X is O- or the like; Y is NR - or the like; and B is an optionally substituted aromatic homo- or hetero-cycle, or optionally substituted ethylene] by subjecting compounds of the general formula (¦) or salts thereof: (¦) [wherein each symbol is as defined above] to Smiles rearrangement, characterized in that the Smiles rearrangement is conducted in the presence of a basic hydroxide in an amide solvent. According to this process, the problems of Smiles rearrangement can be solved and various aromatic compounds useful as drugs, agricultural chemicals, or intermediates for the production of various general-purpose chemicals can be efficiently prepared by Smiles rearrangement.
摘要:
Aminophenol derivatives of the general formula (1) useful as intermediates in the production of drugs, agricultural chemicals and so on can be prepared at a low cost by condensing an amine of the general formula (2) with an ester of the general formula (3) without using a condensing agent.
摘要:
The invention provides low viscosity iodinated aryl compounds, useful as X-ray contrast agents, of formula (I) wherein n is 0 or 1; X is an amide group linked to the phenyl ring either by the nitrogen atom or by the carbon of the carbonyl group; R is H or a C1-4 alkyl group substituted by two or more -OH groups; R' is a C1-4 alkyl group optionally substituted by one or more -OH groups; R'' is a C2-4 alkyl group which may be straight chained or branched and is substituted by two or more -OH groups and isomers thereof.
摘要:
Compounds represented by formula (I) wherein N1 represents an atom to which a donor hydrogen atom in a hydrogen bond donor group is bonded or a hydrogen bond acceptor atom in a hydrogen bond acceptor group; N3 represents a hydrogen bond acceptor atom in a hydrogen bond acceptor group; and N2, N4 and N5 represent each an arbitrary carbon atom constituting a hydrophobic group; having an atom corresponding to N3 and atoms corresponding to at least two atoms selected from N1, N2, N4 and N5 among the five atoms constituting a pharmacophore specified by the interatomic distances among N1, N2, N3, N4 and N5; and, in the optimized stereochemical structure thereof, the interatomic distances between the atom corresponding to N3 and atoms corresponding to at least two atoms selected from N1, N2, N4 and N5 fall within the scope of the pharmacophore interatomic distance, or salts thereof. Because of having an effect of inhibiting the activity of a transcription factor AP-1, these compounds are useful as preventives/remedies for diseases in which the excessive expression of AP-1 participates and as AP-1 inhibitors.