4-(吡啶-2-基)哌嗪-1-羧酸叔丁酯置于三氟乙酸,Sodium Hydroxide体系中,用 二氯甲烷,水 用作溶剂,化学反应 1.0H,以97%的收率获得1-(2-吡啶基)哌嗪 参考文献: Heterocyclic Compounds For The Inhibition Of Pask[fr] Composés Hétérocycliques Pour L'Inhibition De La Pask 标题: Heterocyclic Compounds For The Inhibition Of Pask[fr] Composés Hétérocycliques Pour L'Inhibition De La Pask
专利号:US-7825244-B2 优先权日:2005-06-10 标题:Intermediates useful in the synthesis of alkylquinoline and alkylquinazoline kinase modulators, and related methods of synthesis 发明人:BAINDUR NAND; GAUL MICHAEL DAVID; KREUTTER KEVIN DOUGLAS; XU GUOZHANG 权利人:JANSSEN PHARMACEUTICA NV 摘要:The invention is directed to alkylquinoline and alkylquinazoline compounds of Formula C: n nwherein R 1 , R 2 , R 99 , and X are as defined herein, the use of such compounds in the synthesis of protein tyrosine kinase inhibitors, particularly inhibitors of FLT3 and/or c-kit and/or TrkB.
专利号:US-11912647-B2 优先权日:2020-05-22 标 题:Diversity-oriented synthesis of N,N,O-trisubstituted hydroxylamines from alcohols and amines by N—O bond formation 发明人:CRICH DAVID; HETTIKANKANAMALAGE ASIRI; HILL JARVIS 权利人:UNIV GEORGIA 摘要:In one aspect, the disclosure relates to a method for the direct synthesis of complex N,N,O-trisubstituted hydroxylamines by N—O bond formation. In another aspect, the method can successfully be employed using a wide variety of commercially available alcohols and secondary amines and enables the construction of large fragment-based libraries of trisubstituted hydroxylamines for drug discovery purposes. Also disclosed are N,N,O-trisubstituted hydroxylamines having low basicity, high stability at ambient temperatures, and an inherent lack of reactivity towards acetylating and sulfonylating enzymes that confer mutagenicity on less-substituted hydroxylamines.
专利号:US-8865935-B2 优先权日:2011-06-30 标题:Purification methods for betulonic acid and Boc-lysinated betulonic acid, and organic synthesis of betulonic acid amides with piperazine derivatives 发明人:CHUE KUCK-TACK; KIM TAE-HWAN; TEN LEONID 权利人:CHUE KUCK-TACK; KIM TAE-HWAN; TEN LEONID; KOREA ENERGY RESEARCH INST 摘要:The present invention provides a method of purifying betulonic acid contained the reaction product of organic synthesis of a Jones oxidation reagent and betulin extracted from the bark of a birch, a method of preparing a piperazine betulonic acid amide derivative, which is used as a chemical having an antibacterial function, using the high-purity betulonic acid obtained by the purification method and a derivative prepared by this method, a method of purifying a Boc-lysinated betulonic acid monomer ester contained in the reaction product of organic synthesis of lysine and the high-purity betulonic acid (starting material) obtained by the purification method, and a method of purifying Boc-lysinated betulonic acid contained in the reaction product of hydrolysis of the high-purity Boc-lysinated betulonic acid monomer ester.
专利号:US-8735586-B2 优先权日:2007-06-26 标 题 :Regioselective copper catalyzed synthesis of benzimidazoles and azabenzimidazoles 发明人:ALONSO JORGE; LINDENSCHMIDT ANDREAS; NAZARÉ MARC; URMANN MATTHIAS; HALLAND NIS; RKYEK OMAR 权利人:ALONSO JORGE; LINDENSCHMIDT ANDREAS; NAZARÉ MARC; URMANN MATTHIAS; HALLAND NIS; RKYEK OMAR; SANOFI SA 摘要:The present invention relates to a process for the regioselective synthesis of compounds of the formula I, n nwherein R0; R1; R2; R3; R4; R5; A1; A2; A3; A4, Q and J have the meanings indicated in the claims. The present invention provides a direct copper catalyzed regioselective process to a wide variety of unsymmetrical, multifunctional N-substituted benzimidazoles or azabenzimidazoles of formula I starting from 2-halo-nitroarenes and N-substituted amides.
专利号:US-6887887-B2 优先权日:2001-03-19 标 题:Asymmetric synthesis of (S,S,R)-(-)-actinonin and its analogs and uses therefor 发明人:BORNMANN WILLIAM G; SIROTNAK FRANCIS; SCHER HOWARD; VIDAL EPHRAIM; BORELLA CHRISTOPHER; SCHEINBERG DAVID 权利人:SLOAN KETTERING INST CANCER 摘要:The present invention provides methods for the asymmetric synthesis of (S,S,R)-(−)-actinonin and its analogs and the compounds thereby synthesized having a structural formula: n n nwhere R 1 is an optionally substituted or halogenated alkyl, aryl, heteroalkyl or heteroaryl amine, said R 1 further comprising a cyclic or bicyclic structure; R 2 is methyl, CH 2 CH 3 , (CH 2 ) 2 CH 3 , C(CH 3 ) 3 , phenyl, 3,4-dichlorophenyl, biphenyl, benzyl, 4-hydroxybenzyl, piperidine, N-Boc-4-piperidine, CH 2 -(N-Boc-4-piperidine), 4-tetrahydropyran, CH 2 -4-tetrahydropyran, 3-methyl indolyl, 2-naphthyl, 3-pyridyl, 4-pyridyl, 3-thienyl; R 3 is R 2 or C 3-8 alkyl, R 4 is C 1-3 alkyl; and R 5 is NH 2 , OH, NHOH, NHOCH 3 , N(CH 3 )OH, N(CH 3 )OCH 3 , NHCH 2 CH 3 , NH(CH 2 CH 3 ), NHCH 2 (2,4-(OCH3) 2 Ph, NHCH 2 (4-NO 2 )Ph, NHN(CH 3 ) 2 , proline, or 2-hydroxymethyl pyrrolidine. Additionally, a method for the treatment of a neoplastic disease or for the inhibition of tumor cell growth each comprising the step of administering to an individual in need of such treatment a pharmacologically effective dose of the compounds of the present invention are provided.
专利号:EP-2173747-B1 优先权日:2007-06-26 标 题:A regioselective metal catalyzed synthesis of annelated benzimidazoles and azabenzimidazoles 发明人:ALONSO JORGE; LINDENSCHMIDT ANDREAS; NAZARE MARC; R KYEN OMAR; URMANN MATHIAS; HALLAND NIS 权利人:SANOFI SA 摘要:The present invention relates to a process for the regioselective synthesis of compounds of the formula I, wherein R1; R2; R3; R4; J1; J2; J3; J4 and G have the meanings indicated in the claims. The present invention provides a direct metal, e.g. palladium or copper, catalyzed, regioselective process to a wide variety of unsymmetrical, multifunctional N-substituted benzimidazoles or azabenzimidazoles of formula I starting from 2-halo-nitroarenes and N-substituted amides.
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合成参考文献
参考文献:10.3797/scipharm.1012-17 摘要:Bielenica A, Kossakowski J, Struga M, Dybała I, Loddo R, Ibba C, La Colla P. Synthesis and Biological Evaluation of New 3-Phenyl-1-[(4-arylpiperazin-1-yl)alkyl]-piperidine-2,6-diones. Sci Pharm. 2011 Apr;79(2):225–38.