相似化合物
124391-75-9 124506-31-6 89364-31-8欧盟法规
ECHA物质C&L通报上下游产品
2-羟甲基-1,4-丁二醇 2-(Hydroxymethyl)Butane-1,4-Diol 6482-32-2
3-四氢呋喃甲酸 3-Tetrahydrofuroic Acid 89364-31-8α-Hydroxymethyl-γ-Butyrolactone置于sodium Tetrahydroborate体系中,用 四氢呋喃 用作溶剂,化学反应 8.0H,以90%的收率获得3-四氢呋喃甲醇
参考文献:一种呋虫胺的合成方法
标题:一种呋虫胺的合成方法
摘要:本发明公开了一种呋虫胺的合成方法,以γ‑丁内酯为原料,经aldol缩合,还原两步反应制得3‑羟甲基四氢呋喃,再经gabriel法合成3‑四氢呋喃甲胺,碳酸二甲酯作为甲基化试剂与尿素合成o‑甲基异脲,再硝化合成o‑甲基‑n‑硝基异脲,然后与甲胺反应合成1,3‑二甲基‑2‑硝基异脲,最后3‑四氢呋喃甲胺与1,3‑二甲基‑2‑硝基异脲通过sn2双分子亲核取代反应,一步法合成呋虫胺.本发明采用无毒的碳酸二甲酯作为甲基化试剂,甲基化反应收率>=95%,O‑甲基异脲含量>=96%,副产物是二氧化碳和甲醇,工艺绿色环保,呋虫胺的总收率>=50%.本发明合成方法降低生产成本的同时,具有三废少,后处理简单,环境友好的优点,适用于工业化生产,带来显著的经济效益.
海关参考信息
- 2905121000-正丙醇
2905399001-1,3-丙二醇
2905399002-1,4-丁二醇
2909110000-乙醚 - 💡 提示:海关信息按照顺序优先匹配,如需确认的海关信息,请参考相关资料。
- 详情请参考:📖 海关编码查询和海关进出口税则
专利信息
专利号:US-5756790-A
优先权日:1995-09-29
标题 :Optically active cobalt (II) complexes and method for the preparation of optically active alcohols
发明人:MUKAIYAMA TERUAKI; YOROZU KIYOTAKA; NAGATA TAKUSHI; YAMADA TORU; SUGI KIYOAKI
权利人:MITSUI PETROCHEMICAL IND
摘要:The invention provides a method for preparing an optically active alcohol comprising the step of reacting a ketone compound with a hydride reagent in the presence of an optically active metal compound. The resulting optically active alcohols are useful as intermediates for the synthesis of physiologically active compounds such as drugs and pesticides, functional materials such as liquid crystals, and raw materials for synthesis in fine chemistry. A novel optically active cobalt (II) complex useful as a catalyst is also provided.
专利号:US-6849650-B2
优先权日:1998-02-27
标 题:Heterocyclic 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:THORSETT EUGENE D; PORTER WARREN J; NISSEN JEFFREY S; LATIMER LEE H; AUDIA JAMES E; DROSTE JAMES
权利人:ATHENA NEUROSCIENCES INC; 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 comprising 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-6399628-B1
优先权日:1996-11-22
标 题 :N-(aryl/heteroaryl) amino acid esters, pharmaceutical compositions comprising same, and methods for inhibiting alpha- amyloid peptide release and/or its synthesis by use of such compounds
发明人:AUDIA JAMES E; FOLMER BEVERLY K; JOHN VARGHESE; LATIMER LEE H; NISSEN JEFFREY S; REEL JON K; THORSETT EUGENE D; WHITESITT CELIA A
权利人:ATHENA NEUROSCIENCES INC; 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 comprising 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:EP-0951466-B1
优先权日:1996-12-23
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:WU JING; TUNG JAY S; THORSETT EUGENE D; PLEISS MICHAEL A; NISSEN JEFFREY S; NEITZ JEFFREY; LATIMER LEE H; JOHN VARGHESE; FREEDMAN STEPHEN; BRITTON THOMAS C; AUDIA JAMES E; REEL JON K; MABRY THOMAS E; DRESSMAN BRUCE A; CWI CYNTHIA L; DROSTE JAMES J; HENRY STEVEN S; MCDANIEL STACEY L; SCOTT WILLIAM L; STUCKY RUSSELL D
权利人:ELAN PHARM INC; LILLY CO ELI
摘要:Disclosed are compounds for Formula (I) wherein the substituents are as defined in the claims which inhibit β-amyloid peptide release and/or its synthesis, and, accordingly, have utility in treating Alzheimer's disease. Also disclosed are pharmaceutical compositions comprising 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-7390801-B2
优先权日:1996-12-23
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:THORSETT EUGENE D; PLEISS MICHAEL A; LATIMER LEE H; JOHN VARGHESE; FREEDMAN STEPHEN; BRITTON THOMAS C; AUDIA JAMES A; REEL JON K; DRESSMAN BRUCE A; DROSTE JAMES J; HENRY STEVEN S; STUCKY RUSSELL D; PORTER WARREN J
权利人:ATHENA NEUROSCIENCES INC; 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 comprising 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:WO-2010115869-A1
优先权日:2009-04-03
标 题 :Propofol phosphonyl derivatives, synthesis, and use in long acting formulations
发明人:GONNISSEN YVES RENE JOHANNA PAUL
权利人:SEPS PHARMA N V; GONNISSEN YVES RENE JOHANNA PAUL
摘要:This invention relates to compounds represented by the structural formula (I), and the salts and stereoisomers thereof, wherein: - L is a linker selected from the group consisting of -(CH 2 ) P -O-, a single bond, formula (IA), -(CH 2 ) 1-8 -O-X(O)-, and - p is an integer from 1 to 8, - each R 3 and each R 4 is independently selected from the group consisting of C 1-20 alkyl, C 3-12 alkyl, C 3-12 cycloalkyl-C 1-4 alkyl, saturated heterocyclyl and saturated heterocyclyl-C 1-4 alkyl, and - X and Y are each independently C or S(O), - Z is selected from the group consisting of O, S(O) and NR 5 , - W is selected from the group consisting of halogen, OH, S(O)H and O - M + wherein M + is a monovalent cation; and - R 5 is selected from the group consisting of hydrogen and C 1-10 alkyl. These compounds are useful pharmaceutical agents with improved oral bioavailability.