CAS: 150281-45-1; 2-(Pyrrolidin-3-yl)Pyridine

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1198416-89-5 2138411-43-3 145105-04-0

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CAS号145105-04-0 2-[1-(苯基甲基)-3-吡... | CAS号79560-99-9 2-(1H-pyrrol-3-...

专利信息

专利号:US-6951932-B2
优先权日:2001-10-25
标 题:Synthesis of 2-aralkoxyadenosines and 2-alkoxyadenosines
发明人：MOORMAN ALLAN R
权利人:KING PHARMACEUTICALS RES & DEV
摘要:The invention provides new methods for synthesis of 2-aralkyloxyadenosines and 2-alkoxyadenosines. The invention is particularly useful for synthesis of 2-[2-(4-chlorophenyl)ethoxy]adenosine. Preferred methods of the invention include activating a guanosine compound followed by hydrolysis; alkylating the hydrolyzed compound with subsequent animation to provide a 2-aralkyloxyadenosine or a 2-alkoxyadenosine compound.

专利号:US-11583842-B2
优先权日:2019-07-24
标题 :Zwitterionic catalysts for (trans)esterification: application in fluoroindole-derivatives and biodiesel synthesis
发明人：YEUNG YING-YEUNG; LAM YING-PONG; KE ZHIHAI; WANG XINYAN; TAN FEI; NG WING-HIN; TSE YING-LUNG STEVE
权利人:UNIV HONG KONG CHINESE
摘要:An amide/iminium zwitterion catalyst has a catalyst pocket size that promotes transesterification and dehydrative esterification. The amide/iminium zwitterions are easily prepared by reacting aziridines with aminopyridines. The reaction can be applied a wide variety of esterification processes including the large-scale synthesis of biodiesel. The amide/iminium zwitterions allow the avoidance of strongly basic or acidic condition and avoidance of metal contamination in the products. Reactions are carried out at ambient or only modestly elevated temperatures. The amide/iminium zwitterion catalyst is easily recycled and reactions proceed in high to quantitative yields.

专利号:US-6297391-B1
优先权日:1998-08-05
标 题 :Process for the synthesis of diricinoleyphosphatidylcholine
发明人：BORSOTTI GIAMPIETRO; BATTISTEL EZIO; CELLINI FRANCESCO; IANNACONE RINA
权利人:METAPONTUM AGROBIOS S C R L
摘要:Diricinoleylphosphatidylcholine (I) in an optically active form is obtained with good yields and a high purity by means of a process which comprises: n a) esterifying the terminal carboxylic group of ricinoleic acid (III) with an alcohol having from 1 to 4 carbon atoms to give the corresponding ester having formula (IV); n b) protecting the hydroxylic group of the ester of ricinoleic acid (IV) with a protecting group removable under bland operating conditions and isolating the ester of ricinoleic acid of which the hydroxylic group (V) is protected; n c) hydrolyzing the ester of ricinoleic acid of which the hydroxylic group (V) is protected and isolating the ricinoleic acid of which the hydroxylic group (VI) is protected; n d) acylating L-α-glycerophosphatidylcholine (II) with an imidazolic or triazolic derivative of the compound having formula (VI) and isolating the diricinoleylphosphatidylcholine of which the hydroxylic group (VII) is protected; n e) removing the protecting group from the hydroxylic group of the compound having formula (VII); and finally n f) recovering and purifying the compound having formula (I) by means of chromatography.

专利号:US-6710185-B2
优先权日:2000-09-20
标 题 :Process for the preparation of cell proliferation inhibitors
发明人：GUPTA ASHOK K; KING STEVEN A; LEE ELAINE C; MORTON HOWARD E; PLATA DANIEL J; PU YU-MING; SHARMA PADAM N
权利人:ABBOTT LAB
摘要:The instant invention discloses a process for the synthesis of substituted indole cell proliferation inhibitors.

专利号:US-2003199686-A1
优先权日:2001-10-25
标题:Synthesis of 2-aralkoxyadenosines and 2-alkoxyadenosines

专利号:US-10974967-B2
优先权日:2017-06-13
标题 :Molecular sieve SCM-15, synthesis method therefor and use thereof
发明人：YANG WEIMIN; WANG ZHENDONG; LUO YI; SUN HONGMIN; ZHANG BIN
权利人:CHINA PETROLEUM & CHEM CORP; SHANGHAI RES INST PETROCHEMICAL TECH SINOPEC
摘要:The invention relates to a molecular sieve SCM-15, a preparation process and use thereof. The molecular sieve comprises a schematic chemical composition of a formula of “SiO2.GeO2â€?, wherein the molar ratio of silicon and germanium satisfies SiO2/GeO2≥1. The molecular sieve has unique XRD diffraction data and can be used as an adsorbent or a catalyst.