专利号:US-8604219-B2 优先权日:2009-08-24 标题 :Method for synthesis of N-alkyl carbazole and derivatives thereof 发明人:GHARDA KEKI HORMUSJI 权利人:GHARDA KEKI HORMUSJI 摘要:Disclosed is a process for the preparation of N-alkyl carbazole. Said process comprises: a) chlorinating cyclohexanone to form 2-chlorocyclohexanone; b) reacting 2-chlorocyclohexanone with N-ethyl aniline to form 2-(N-ethyl anilino)cyclohexanone; c) cyclizing 2-(N-ethyl anilino) cyclohexanone by refluxing with simultaneous water removal to obtain 9-ethyltetrahydrocarbazole; d) treating 9-ethyl-tetrahydrocarbazole with concentrated hydrochloric acid followed by water wash for removing N-ethyl aniline; e) dehydrogenating 9-ethyltetrahydrocarbazole by heating 9-ethyltetrahydrocarbazole in a solvent, in presence of a catalyst to obtain N-alkyl carbazole.
专利号:US-5175146-A 优先权日:1989-12-05 标题 :Synthetic calcitonin peptides 发明人:BASAVA CHANNA; HOSTETLER KARL Y 权利人:VICAL INC 摘要:Synthetic hypocalcemic peptides which are similar in biological properties to native calcitonins as clinically useful agents. The peptides comprise analogues of native calcitonins having amino acid substitutions and deletions which act to improve potency, prolong duration of the hormonal effect, enhance receptor binding, and increase oral or nasal bioavailability. The calcitonin peptide analogues are less expensive and more easily synthesized than native calcitonins, and have improved resistance to inactivation or degradation. Methods are provided for the synthesis of these peptides. Also, disclosed are novel cyclic peptides, including calcitonin, having increased stability with respect to proteolysis. Methods for the synthesis of these peptides are provided, comprising converting disulfide cyclic peptides and proteins to enzymatically and chemically stable cyclic peptide structures by the replacement of cysteine residues with dicarboxylic acids and diamino acids. The method is applicable to various naturally occurring peptides, their synthetic analogues or derivatives, and proteins.
专利号:US-2012149915-A1 优先权日:2009-08-24 标题:Method for synthesis of n-alkyl carbazole and deriratives thereof
专利号:US-6878184-B1 优先权日:2002-08-09 标题 :Nanoparticle synthesis and the formation of inks therefrom 发明人:ROCKENBERGER JOERG; ZURCHER FABIO; HAUBRICH SCOTT; SLEIMAN NASSRIN 权利人:KOVIO INC 摘要:Methods for making metal-based nanoparticles and inks are disclosed. In accordance with the method of the present invention, molecular metal precursors are reduced in the presence of a reaction medium to form the nanoparticles. The molecular metal precursors are preferably reduced by heating the metal precursor in the medium, by adding a reducing agent, such an aldehyde or a combination thereof. Metal precursor are preferably metal oxides, transition metal complexes or combination thereof. The method of the present invention is used to make high yield nanoparticles with a range of particle size distributions. Nanoparticle formed by the present invention include mixtures of nanoparticle, alloy nanoparticles, metal core shell nanoparticles or nanoparticle comprising a single metal species.
专利号:WO-2011024186-A1 优先权日:2009-08-24 标题:Method for synthesis of n-alkyl carbazole and derivatives thereof
专利号:CN-85102572-A 优先权日:1985-04-01 标题 :Synthesis of Pineapple Ester Using 4-Vinylcyclohexene
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合成参考文献
摘要:de Figueiredo, R. M., Science of Synthesis: Knowledge Updates, (2024) 2, 261.