184948-25-2

Upstream product

• 4392-24-9 Cinnamyl bromide 
• 184948-24-1 tert-butyl (2R)-1,2-dibenzyl 4-methylpentane-1,1,2-tricarboxylate 
• 4392-24-9 3-bromo-1-phenyl-1-propenyl bromide 

Downstream Products

• 184948-26-3 3(RS)-tert-butyloxycarbonyl-6-phenyl-2(R)-isobutylhexanoic acid 

Relevant academic research and scientific papers

NOVEL HYDROXAMIC ACID DERIVATIVES

Disclosed are compounds which have not only potent metalloproteinase-inhibiting activity but also amazingly excellent bioavailability and biological activity invivo, including the property of being well absorbed via oral routes, thereby serving as useful pharmaceuticals, intermediates and processes for the production thereof. The disclosed compounds of the formula (I): wherein R1 is hydrogen, or a hydroxy-protecting group; R2 is hydrogen, or an amino-protecting group; R3, R7, and R8, which may be identical or different, are each independently hydrogen, hydroxy, unsubstituted or optionally substituted (C1-C6) alkyl, or unsubstituted or optionally substituted aryl-(C1-C6) alkyl; R4 is unsubstituted or optionally substituted (C1-C6) alkyl, or unsubstituted or optionally substituted aryl-(C1-C6) alkyl; R5 is hydrogen, unsubstituted or optionally substituted alkyl, unsubstituted or optionally substituted aralkyl, or a carboxy-protecting group; R6 is hydrogen, hydroxy, amino, and a group of the formula: -X-Y wherein X is oxygen, (C1-C6) alkylene or phenylene, Y is a group of the formula: -A-B or -B, wherein A is (C1-C6) alkylene, imino, and (C1-C6) alkyleneimino, and B is hydrogen, amino, amidino, sulfonyl, acylimidoyl, unsubstituted or optionally substituted imidazolyl, unprotected or optionally protected bis(phosphono)methyl or unprotected or optionally protected bis(phosphono)hydroxymethyl; or salts thereof are useful for pharmaceutical and/or veterinary compositions, particularly as metalloproteinase inhibitors which inhibit matrix metalloproteinases or tumor necrosis factor-α-converting enzymes (TNF-α convertases).

NOVEL REMEDIES FOR ALLERGIC DISEASES

Disclosed are anti-inflammatory agents, antiallergic agents, particularly prophylactically and/or therapeutically effective drugs for type I and/or IV allergic conditions, and further pharmaceutical drugs for prophylactically and/or therapeutically treating bronchial asthma, atopic diseases, etc. The inventive drugs comprising a prophylactically and/or therapeutically effective amount of a hydroxamic acid derivative are active in the prophylaxis and/or therapy of allergy, especially type I and/or IV allergy, etc. The drugs are active in prophylactically and/or therapeutically treating inflammation, rhinitis, conjunctivitis, bronchial asthma, atopic diseases (including dermatitis, enteritis, etc.), or allergic gastroenterocolitis (allergic inflammation in digestive tract). The application of such drugs leads to (A) reduction of cells (such as lymphocytes, neutrophils, mast cells, eosinophils, basophils, macrophages and monocytes) at a diseased site, and/or (B) alleviation of inflammatory symptoms caused by migration, infiltration or accumulation of cells (such as lymphocytes, neutrophils, mast cells, eosinophils, basophils, macrophages and monocytes) to (or at) the diseased site, (C) inhibition of pathophysiological functions in cells (such as lymphocytes, neutrophils, mast cells, eosinophils, basophils, macrophages, monocytes, Langerhans cell and dendritic cells), and/or (D) reducing the blood level or inhibiting the production, of antibodies, especially IgE. Accordingly, the drugs are useful in the prophylaxis and/or therapy of diseases, disorders or ill conditions at the site.