CAS: 75-58-1; Tetramethylammonium Iodide

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专利信息

专利号:US-11891375-B2
优先权日:2021-07-26
标 题 :Method for the synthesis of 2,4-dimethylpyrimidin-5-ol, intermediates, and method for the synthesis of Lemborexant using the intermediates
发明人：AKHATOU ABDESLAM; DOBARRO RODRÃ?GUEZ ALICIA
权利人:MOEHS IBERICA SL
摘要:A method is for the synthesis of 2,4-dimethylpyrimidin-5-ol, which can be used as an intermediate compound in the synthesis of Lemborexant. The method includes reacting a nitrophenyl compound with N,N-dimethylformamide diethyl acetal.

专利号:US-2023286918-A1
优先权日:2020-07-02
标 题:Manufacturing process for 3,5-dichloropicolinonitrile for synthesis of vadadustat
发明人：JURKAUSKAS VALDAS; JUNG YOUNG CHUN; KWON TAESOO; KANNAN ARUNACHALAM; GONDI VIJAYA BHASKER
权利人:AKEBIA THERAPEUTICS INC
摘要:Disclosed herein are methods and processes of preparing vadadustat or a pharmaceutically acceptable salts thereof, and intermediates (e.g., a compound of Formula (I), (I-F), (II), or (IV), or a pharmaceutically acceptable salts thereof) useful for the synthesis of vadadustat.

专利号:US-11858901-B2
优先权日:2019-10-30
标 题:3-((R)-2-(amino-2-phenylethyl)-1-(2-fluoro-6 trifluoromethyl benzyl)-5-iodo-6-methyl-1H-pyrimidine-2,4-dione or a salt thereof, process for its preparation, and its use in the synthesis of elagolix
发明人：BALLETTE ROBERTO; JIMÉNEZ ALONSO OSCAR; GARCÃ?A GARCÃ?A ELENA; DOBARRO RODRÃ?GUEZ ALICIA
权利人:MOEHS IBERICA SL
摘要:A new intermediate is useful in the synthesis of elagolix. A process for obtaining the intermediate includes reacting a precursor with iodine monochloride in the presence of an organic solvent. A process for preparing elagolix makes use of the intermediate. The intermediate can be 3-((R)-2-(amino-2-phenylethyl)-1-(2-fluoro-6-trifluoromethylbenzyl)-5-iodo-6-methyl-1H-pyrimidine-2,4-dione or a salt thereof, such as a hydrochloride.

专利号:US-7423169-B2
优先权日:2001-06-11
标 题:Methods for synthesis of acyloxyalkyl derivatives of GABA analogs
发明人：RAILLARD STEPHEN P; ZHOU CINDY X; YAO FENMEI; MANTHATI SURESH KUMAR; XIANG JIA-NING; GALLOP MARK A
权利人:XENOPORT INC
摘要:The synthesis of 1-(acyloxy)-alkyl carbamates of GABA analogs from 1-haloalkyl carbamates of GABA analogs are described. Also described are new 1-haloalkyl carbamates of GABA analogs.

专利号:US-7576234-B2
优先权日:2002-05-15
标题 :Synthesis of 2-alkyl amino acids
发明人：CHORGHADE MUKUND S; GURJAR MUKUND K; MOHAPATRA DEBENDRA K
权利人:GENZYME CORP
摘要:Non-natural amino acids such as 2-alkylated amino acids allow for the synthesis of a wider variety of peptidal and non-peptidal pharmaceutically active agents. A method of preparing a 2-alkyl amino acid involves a Michael-type addition of a nucleophile to a dialkyl 2-methylidenylpropan-1,3-dioate and the conversion of a ester moiety into an amino moiety. The present invention also discloses a method of preparing a class of iron chelating agents related to desferrithiocin, all of which contain a thiazoline ring. In this method, an aryl nitrile or imidate is condensed with cysteine, a 2-alkyl cysteine, or a cysteine ester.

专利号:US-2015158809-A9
优先权日:2013-02-26
标 题 :Method of making 1-(acyloxy)-alkyl carbamate compounds
发明人：WANG HUAN; LIU PENG; DAI QUNYING; YIN HAO; RAILLARD STEPHEN P
权利人:XENOPORT INC
摘要:Methods of preparing carbamate prodrugs of amine-containing drugs are provided. Carbonates useful in the synthesis of the carbamate prodrugs are also provided.