81569-57-5Relevant articles and documents
Synthetic method of drug intermediate sulfur-containing nitrogen heterocyclic amine compound (by machine translation)
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, (2020/09/12)
To the invention, 4 -N-BOC -3 - isopropylthiazole is obtained by reaction of 2 - methyl -4 - oxo-pentanoic acid ethyl ester, dichloromethane and sulfonyl chloride as a raw material, and then -3 - N-BOC - 2 - isopropylthiazole and HCl are added in the presence of ethanol as a solvent to obtain -4 - N-BOC-n-isopropythiazol -5 - methyl 4 -isoprop -5 -aminothiazole in the presence of triethylamine, and a NaOH solution is added as a solvent and then subjected to extraction washing to obtain 4 -yl -5 -aminothiazolethyl acetate in the presence of trifluoroethanol as a solvent and ethanol as a solvent to obtain ethyl acetate 4 - 5-propyl thiazole -5 - formic acid ethyl ester with ethanol as a 4 - solvent and an aqueous solution of N-BOC-5 n-isopropylthiazole 4 - and the like 4 -5 . The method has the advantages of clear steps, less waste, high yield, raw material saving and easy operation. (by machine translation)
METHYL SULFANYL PYRMIDMES USEFUL AS ANTIINFLAMMATORIES, ANALGESICS, AND ANTIEPILEPTICS
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Page/Page column 159, (2010/12/18)
The present invention relates to pyrimidine derivatives of Formula (Ia) and (Ib) (including tautomers, isomers, prodrugs, and pharmaceutically acceptable salts thereof). Said compounds are useful in the treatment of pain (such as neuropathic pain), inflammation, and epilepsy (by acting as anticonvulsants). Methods of medical treatment making use of said compounds, as well as additional compounds of Formula (IIa) and (IIb), are also disclosed.
Syntheses and Reactions of 2-Halo-5-thiazolecarboxylates
Lee, Len F.,Schleppnik, Francis M.,Howe, Robert K.
, p. 1621 - 1630 (2007/10/02)
A variety of 2-halo-5-thiazolecarboxylates was prepared from substituted-3-aminoacrylates and 3-ketoesters.Selective reduction of 2-chloro-5-thiazolecarboxylates 4a, 4i and 4j with sodium borohydride in ethanol provided the corresponding 2-halo-5-thiazolemethanols 27 - 29.Nucleophilic displacement on methyl methanesulfonate (32c) occured selectivity at the 5-substituent to provide 2-chloro-4-(trifluoromethyl)-5-(heteroatom-substituted methyl)thiazoles 32d-f.