{"id":10625,"date":"2022-10-27T02:50:03","date_gmt":"2022-10-26T18:50:03","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=10625"},"modified":"2022-10-27T02:50:03","modified_gmt":"2022-10-26T18:50:03","slug":"nakahata-takashi-team-published-research-in-bioorganic-medicinal-chemistry-in-2018-37622-90-5","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=10625","title":{"rendered":"Nakahata, Takashi team published research in Bioorganic & Medicinal Chemistry in 2018 | 37622-90-5"},"content":{"rendered":"

Pyrazoles can be selectively lithiated at different carbons and subsequently react with electrophiles depending on the substitution patterns. 37622-90-5, formula is C6H8N2O2, Name is Ethyl 4-pyrazolecarboxylate. 1-Methyl-5-(trifluoromethyl)pyrazole underwent deprotonation and subsequent carboxylation mainly or exclusively at either the 4-position of the heterocycle or at the nitrogen-attached methyl group. Related Products of 37622-90-5<\/a>.<\/p>\n

Nakahata, Takashi;Tokumaru, Kazuyuki;Ito, Yoshiteru;Ishii, Naoki;Setoh, Masaki;Shimizu, Yuji;Harasawa, Toshiya;Aoyama, Kazunobu;Hamada, Teruki;Kori, Masakuni;Aso, Kazuyoshi research published \u300a Design and synthesis of 1-(1-benzothiophen-7-yl)-1H-pyrazole, a novel series of G protein-coupled receptor 52 (GPR52) agonists\u300b, the research content is summarized as follows. G-protein-coupled receptor 52 (GPR52) is classified as an orphan Gs-coupled G-protein-coupled receptor. GPR52 cancels dopamine D2 receptor signaling and activates dopamine D1\/N-methyl-D<\/smallcap>-aspartate receptors via intracellular cAMP accumulation. Therefore, GPR52 agonists are expected to alleviate symptoms of psychotic disorders. A novel series of 1-(benzothiophen-7-yl)-1H-pyrazole as GPR52 agonists was designed and synthesized. The first orally active GPR52 agonist with high lipophilicity and poor aqueous solubility still remained as issues for candidate selection. To resolve these issues, replacement of the benzene ring at the 7-position of compound 1b with heterocylic rings, such as pyrazole and pyridine, was greatly expected to reduce lipophilicity to levels for which calculated logD values were lower than that of compound 1b. While evaluating the pyrazole derivatives, introduction of a Me substituent at the 3-position of the pyrazole ring led to increased GPR52 agonistic activity. Moreover, addnl. Me substituent at the 5-position of the pyrazole and further introduction of hydroxy group to lower logD led to significant improvement of solubility while maintaining the activity. As a result, the authors identified 3-methyl-5-hydroxymethyl-1H-pyrazole derivative 17 (N-(2-hydroxyethyl)-5-(hydroxymethyl)-3-methyl-1-(2-(3-(trifluoromethyl)benzyl)-1-benzothiophen-7-yl)-1H-pyrazole-4-carboxamide) (GPR52 EC50<\/sub> = 21 nM, Emax<\/sub> = 103%, logD = 2.21, Solubility at pH 6.8 = 21 \u03bcg\/mL) with potent GPR52 agonistic activity and good solubility compared to compound 1b. Furthermore, this compound 17 dose-dependently suppressed methamphetamine-induced hyperlocomotion in mice.<\/p>\n

37622-90-5, Ethyl 4-pyrazolecarboxylate, also known as Ethyl pyrazole-4-carboxylate, is a useful research compound. Its molecular formula is C6H8N2O2 and its molecular weight is 140.14 g\/mol. The purity is usually 95%.<\/p>\n

Ethyl pyrazole-4-carboxylate is a low yield, transition metal salt that is used in the synthesis of pyrazoles. It can be synthesized by the reaction of sodium ethoxide with ethyl chloroformate and a Grignard reagent. Sodium ethoxide is added to a suspension of sodium chloride and dried ethyl chloroformate, followed by addition of magnesium turnings. The mixture is refluxed for one hour, cooled, and filtered to give crystals. Ethyl pyrazole-4-carboxylate is used in the preparation of ethyl esters from aliphatic alcohols by reacting with boron trichloride or phosphorus pentachloride. It participates in certain chemical reactions as a byproduct and can damage equipment during chemical reactions. The yield of this compound can be increased by using an excess amount of Grignard reagent or adding hexamethylenetetramine to the reaction mixture, Related Products of 37622-90-5<\/a><\/p>\n

Referemce:
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

37622-90-5, Ethyl 4-pyrazolecarboxylate, also known as Ethyl pyrazole-4-carboxylate, is a useful research compound. Its molecular formula is C6H8N2O2 and its molecular weight is 140.14 g\/mol. The purity is usually 95%.<\/p>\n

Ethyl pyrazole-4-carboxylate is a low yield, transition metal salt that is used in the synthesis of pyrazoles. It can be synthesized by the reaction of sodium ethoxide with ethyl chloroformate and a Grignard reagent. Sodium ethoxide is added to a suspension of sodium chloride and dried ethyl chloroformate, followed by addition of magnesium turnings. The mixture is refluxed for one hour, cooled, and filtered to give crystals. Ethyl pyrazole-4-carboxylate is used in the preparation of ethyl esters from aliphatic alcohols by reacting with boron trichloride or phosphorus pentachloride. It participates in certain chemical reactions as a byproduct and can damage equipment during chemical reactions. The yield of this compound can be increased by using an excess amount of Grignard reagent or adding hexamethylenetetramine to the reaction mixture, Related Products of 37622-90-5<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[218,131],"tags":[732],"class_list":["post-10625","post","type-post","status-publish","format-standard","hentry","category-37622-90-5","category-pyrazoles-derivatives","tag-m-w100-150"],"yoast_head":"\nNakahata, Takashi team published research in Bioorganic & Medicinal Chemistry in 2018 | 37622-90-5 | pyrazoles-derivatives<\/title>\n<meta name=\"description\" content=\"Pyrazoles can be selectively lithiated at different carbons and subsequently react with electrophiles depending on the substitution patterns. 37622-90-5, formula is C6H8N2O2, Name is Ethyl 4-pyrazolecarboxylate. 1-Methyl-5-(trifluoromethyl)pyrazole underwent deprotonation and subsequent carboxylation mainly or exclusively at either the 4-position of the heterocycle or at the nitrogen-attached methyl group. 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