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CAS号998-40-3 三丁基膦合成工艺路线路线简述
- 合成目标产物 Cyanomethylenetributylphosphorane 主要起始原料 Tributylphosphine
- (文献来源)合成步骤主要原料 Tributylphosphine
📜Cyanomethyltributylphosphonium Chloride 以91%的收率获得
参考文献:Tsunoda Tetsuto,Ozaki Fumie,Ito Sho,Tetrahedron Lett,35 (1994) N 28,S 5081-5082
标题:Tsunoda Tetsuto,Ozaki Fumie,Ito Sho,Tetrahedron Lett,35 (1994) N 28,S 5081-5082
专利信息
专利号:US-11512097-B2
优先权日:2019-11-25
标题 :Heterocyclic compounds as Delta-5 desaturase inhibitors and methods of use
发明人:ALLEN JENNIFER R; BELTRANI MICHELA; BOURBEAU MATTHEW P; DAMYANOVA TEODORA P; LINGARD IAIN; MINATTI ANA E; VINCETTI PAOLO
权利人:AMGEN INC
摘要:The present disclosure provides compounds useful for the inhibition of Delta-5 Desaturase (“D5Dâ€?). The compounds have a general Formula I n nwherein the variables of Formula I are defined herein. This disclosure also provides pharmaceutical compositions comprising the compounds, uses of the compounds, and compositions for treatment of, for example, a metabolic or cardiovascular disorder. Further, the disclosure provides intermediates useful in the synthesis of compounds of Formula I.
专利号:US-2008214809-A1
优先权日:2006-08-23
标 题 :Process for the synthesis of CMHTP and intermediates thereof
发明人:DOLITZKY BEN-ZION; SHAPIRO EVGENY; INI SANTIAGO; SHMUELY YARON; LANCRY ELI; PILARSKY GIDEON
权利人:DOLITZKY BEN-ZION; SHAPIRO EVGENY; INI SANTIAGO; SHMUELY YARON; LANCRY ELI; PILARSKY GIDEON
摘要:The present invention provides processes of preparing 3-(2-chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrrido[1,2-a]-pyrimidin-4-one (CMHTP) useful as intermediates for the preparation of paliperidone, wherein the processes use 3-(2-chloroethyl)-2-methyl-9-benzyloxy-4H-pyrido[1,2-a]pyrimidine-4-one (CMBP) and/or 3-(2-chloroethyl)-2-methyl-9-hydroxy-4H-pyrido[1,2-a]pyrimidine-4-one (CMHP) having phosphorus at least partially removed as the intermediate.
专利号:US-7820816-B2
优先权日:2006-08-23
标题:Process for the synthesis of CMHTP and intermediates thereof
发明人:DOLITZKY BEN-ZION; SHAPIRO EVGENY; INI SANTIAGO; SHMUELY YARON; LANCRY ELI
权利人:TEVA PHARMA
摘要:The present invention provides 3-benzyloxy-2-aminopyridine (BOPA), 3-(2-Hydroxyethyl)-2-methyl-9-hydoxy-4H-pyrido[1,2-a]pyrimidine-4-one (HMBP), 3-(2-Chloroethyl)-2-methyl-9-hydoxy-4H-pyrido[1,2-a]pyrimidine-4-one (CMHP) and 3-(2-chloroethyl)-6,7,8,9-tetrahydro-9-hydroxy-2-methyl-4H-pyrrido[1,2-a]-pyrimidin-4-one (CMHTP) useful as intermediates for the preparation of paliperidone. The present invention also provides processes for preparing these intermediates and for preparing paliperidone.
专利号:US-2012095211-A1
优先权日:2010-09-22
标 题 :Substituted proline inhibitors of hepatitis c virus replication
发明人:BUCKMAN BRAD; NICHOLAS JOHN B; SEREBRYANY VLADIMIR; SEIWERT SCOTT D
权利人:BUCKMAN BRAD; NICHOLAS JOHN B; SEREBRYANY VLADIMIR; SEIWERT SCOTT D; INTERMUNE INC
摘要:The embodiments provide compounds of the general Formulae I, Ia, II, IIa, III, IIIa, IIIb, IV, IVa, IVb, V, Va, Vb, VI, VIa, VIb, and VIc, as well as compositions, including pharmaceutical compositions, comprising a subject compound. The embodiments further provide treatment methods, including methods of treating a hepatitis C virus infection and methods of treating liver fibrosis, the methods generally involving administering to an individual in need thereof an effective amount of a subject compound or composition. The embodiments also provide methods for the synthesis of subject compounds and intermediates in the synthetic methods.
专利号:US-8138272-B2
优先权日:2006-05-22
标 题:Preparation of polymer conjugates of therapeutic, agricultural, and food additive compounds
发明人:KONRADI ANDREI W; SMITH JENIFER L
权利人:KONRADI ANDREI W; SMITH JENIFER L; ELAN PHARM INC
摘要:This invention provides an improved synthesis of polymer conjugates of formula (I), n nof agricultural, therapeutic, and food additive compounds. In particular, a process is described for the preparation of conjugates by treating primary or secondary alcohol substituents of active compounds with polymeric nucleophiles using “Mitsunobuâ€? or related reaction conditions.
专利号:WO-2009045489-A3
优先权日:2007-10-03
标题:Process for the synthesis of cmhtp, a paliperidone intermediate
发明人:INI SANTIAGO; SHMUELY YARON
权利人:TEVA PHARMA; TEVA PHARMA; INI SANTIAGO; SHMUELY YARON
摘要:The present invention provides a process for 3-(2-chloroethyl)-6,7,8,9- tetrahydro-9-hydroxy-2-methyl-4H-pyrrido[1,2-a]- pyrimidin-4-one (CMHTP), comprising reacting 3-(2- chIoroethyl)-2-methyl-9-hydoxy-4H-pyrido[1,2-a]pyrimidine-4-one (CMHP) and/or 3-(2-chIoroethyi)-2-methyl-9-benzyIoxy-4H-pyrido[1,2-a]pyrimidine-4-one (CMBP) with a hydrogen source and at least one hydrogenation catalyst to form CMHTP, wherein the hydrogen source is cyclohexene, cyclohexadiene or ammonium formate, and wherein the ammonium formate is mixed with formic acid, and its conversion to paliperidone.