专利号:US-4341898-A 优先权日:1981-05-18 标题:Synthesis of isocyanates from nitroalkanes 发明人:MILLIGAN BARTON; PINSCHMIDT JR ROBERT K 权利人:AIR PROD & CHEM 摘要:A process for the preparation of aromatic isocyanates from nitroalkanes. A nitromethyl aromatic compound of the general formula: wherein R and R1 represent hydrogen, halogen, a C1-C5 alkyl radical, a C1-C4 alkoxy radical, nitro, isocyanato, an alkoxycarbonylamino, or nitromethyl radical, with R and R1 being the same or different, is heated in the presence of an effective amount of a Lewis acid or Bronsted acid substance to effect a dehydrogenation-isomerization reaction to yield an aromatic isocyanate of the general formula: The product of the reaction may be recovered as the aromatic isocyanate or the alcohol adduct, a carbamate.
专利号:US-2005192265-A1 优先权日:2003-03-20 标 题:Cycloalkyl, lactam, lactone and related compounds, pharmaceutical compositions comprising same, and methods for inhibiting beta-amyloid peptide release and/or its synthesis by use of such compounds 发明人:THOMPSON RICHARD C; WILKIE STEPHEN; STACK DOUGLAS R; VANMETER ELDON E; SHI QING; BRITTON THOMAS C; AUDIA JAMES E; REEL JON K; MABRY THOMAS E; DRESSMAN BRUCE A; CWI CYNTHIA L; HENRY STEVEN S; MCDANIEL STACEY L; STUCKY RUSSELL D; PORTER WARREN J 摘要:Disclosed are compounds which inhibit β-amyloid peptide release and/or its synthesis, and, accordingly, have utility in treating Alzheimer's disease. Also disclosed are pharmaceutical compositions that include a compound which inhibits β-amyloid peptide release and/or its synthesis as well as methods for treating Alzheimer's disease both prophylactically and therapeutically with such pharmaceutical compositions.
专利号:US-6906056-B2 优先权日:1998-06-22 标 题:Cycloalkyl, lactam, lactone and related compounds, pharmaceutical compositions comprising same, and methods for inhibiting β-amyloid peptide release and/or its synthesis by use of such compounds 发明人:THOMPSON RICHARD C; WILKIE STEPHEN; STACK DOUGLAS R; VANMETER ELDON E; SHI QING; BRITTON THOMAS C; AUDIA JAMES E; REEL JON K; MABRY THOMAS E; DRESSMAN BRUCE A; CWI CYNTHIA L; HENRY STEVEN S; MCDANIEL STACEY L; STUCKY RUSSELL D; PORTER WARREN J 权利人:LILLY CO ELI 摘要:Disclosed are compounds which inhibit β-amyloid peptide release and/or its synthesis, and, accordingly, have utility in treating Alzheimer's disease. Also disclosed are pharmaceutical compositions that include a compound which inhibits β-amyloid peptide release and/or its synthesis as well as methods for treating Alzheimer's disease both prophylactically and therapeutically with such pharmaceutical compositions.
专利号:CN-116137864-A 优先权日:2020-07-23 标 题:Synthesis of linear polyoxazolidinones using uretdiones as diisocyanate component
专利号:CN-111471171-B 优先权日:2019-01-24 标 题:A kind of aryl sulfonic acid intermediate and its preparation method, and its application for the synthesis of low temperature sensitive admixture for concrete
专利号:US-2011015119-A1 优先权日:2009-06-24 标题:Novel semi-synthetic glycopeptides as antibacterial agents 发明人:CHU DANIEL; YE TAO; WANG BING 权利人:LEAD THERAPEUTICS INC 摘要:Semi-synthetic glycopeptides having antibacterial activity are described, in particular, the semi-synthetic glycopeptides described herein are made by chemical modification of a glycopeptide (Compound A, Compound B, Compound H or Compound C) or monosaccharide made by hydrolyzing the disaccharide moiety of the amino acid-4 of the parent glycopeptide in acidic medium to give the amino acid-4 monosaccharide; conversion of the monosaccharide to the amino-sugar derivative; acylation of the amino substituent on the amino acid-4 amino-substituted sugar moiety on these scaffolds with certain acyl groups; and conversion of the acid moiety on the macrocyclic ring of these scaffolds to certain substituted amides. Key reaction is the treatment of properly protected intermediate compound with isocyanate. Also provided are methods for the synthesis of the compounds, pharmaceutical compositions containing the compounds, and methods of use of the compounds for the treatment and/or prophylaxis of diseases, especially bacterial infections.