{"id":6193,"date":"2021-09-06T03:31:22","date_gmt":"2021-09-05T19:31:22","guid":{"rendered":"https:\/\/www.pyrazoles-derivatives.com\/?p=6193"},"modified":"2021-09-06T03:31:22","modified_gmt":"2021-09-05T19:31:22","slug":"september-62021-news-share-a-compound-1192-21-8","status":"publish","type":"post","link":"https:\/\/www.pyrazoles-derivatives.com\/?p=6193","title":{"rendered":"September 6,2021 News Share a compound : 1192-21-8"},"content":{"rendered":"

Related Products of 1192-21-8<\/a>, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 1192-21-8, name is 1-Methyl-1H-pyrazol-5-amine belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below.<\/p>\n

BrettPhos 3rd generation precatalyst (12.44 mg, 0.02 mmol) was added to CS2CO3 (304 mg, 0.93 mmol), 1 -methyl- lH-pyrazol-5-amine (91 mg, 0.93 mmol) and (5)-2-(2-chloro-5- methylpyrimidin-4-yl)-7-(3-(difluoromethyl)benzyl)-6-methyl-6,7-dihydroimidazo[l,2- a]pyrazin-8(5H)-one (Intermediate 69; 130mg, 0.31 mmol) in 1,4-dioxane (5 mL) under nitrogen. The resulting mixture was stirred at 100 \u00b0C for 4 hours. The solvent was then removed under reduced pressure. The crude product was purified by flash silica chromatography, elution gradient 0 to 6percent MeOH in DCM. Pure fractions were evaporated to dryness to afford a residue. This residue was purified further by preparative HPLC (XSelect CSH Prep C18 OBD column, 5mu silica, 19 mm diameter, 150 mm length), using decreasingly polar mixtures of water (containing 0.1percent Formic acid) and MeCN as eluents. Fractions containing the desired compound were evaporated to dryness to afford (5)-7-(3- (difluoromethyl)benzyl)-6-methyl-2-(5-methyl-2-((l-methyl-lH-pyrazol-5- yl)amino)pyrimidin-4-yl)-6,7-dihydroimidazo[l,2-a]pyrazin-8(5H)-one (Example 21; 85 mg, 57.1percent) as a white solid. lH NMR (300 MHz, DMSO, 23 \u00b0C) delta 1.12 (3H, s), 2.40 (3H, s), 3.70 (3H, s), 3.90-4.10 (1H, m), 4.36-4.44 (3H, m), 5.14 (1H, d), 6.29 (1H, d), 7.04 (1H, t), 7.33 (1H, d), 7.50-7.59 (4H, m), 7.93 (1H, s), 8.32 (1H, s), 9.21 (1H, s). m\/z (ES+), [M+H]+ = 479.<\/p>\n

The synthetic route of 1-Methyl-1H-pyrazol-5-amine has been constantly updated, and we look forward to future research findings.<\/p>\n

Reference:
Patent; ASTRAZENECA AB; WARD, Richard, Andrew; JONES, Clifford, David; SWALLOW, Steven; GRAHAM, Mark, Andrew; DOBSON, Andrew, Hornby; MCCABE, James, Francis; (223 pag.)WO2017\/80979; (2017); A1;<\/a>,
Pyrazole – Wikipedia<\/a>,
Pyrazoles – an overview | ScienceDirect Topics<\/p>\n","protected":false},"excerpt":{"rendered":"

The synthetic route of 1-Methyl-1H-pyrazol-5-amine has been constantly updated, and we look forward to future research findings.<\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[191,131],"tags":[145],"class_list":["post-6193","post","type-post","status-publish","format-standard","hentry","category-1192-21-8","category-pyrazoles-derivatives","tag-m-w0-100"],"yoast_head":"\nShare a compound :<\/title>\n<meta name=\"description\" content=\"Related Products of 1192-21-8, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 1192-21-8, name is 1-Methyl-1H-pyrazol-5-amine belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.pyrazoles-derivatives.com\/?p=6193\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Share a compound :\" \/>\n<meta property=\"og:description\" content=\"Related Products of 1192-21-8, In the next few decades, the world population will flourish. As the population grows rapidly and people all over the world use more and more resources, all industries must consider their environmental impact. 1192-21-8, name is 1-Methyl-1H-pyrazol-5-amine belongs to pyrazoles-derivatives compound, it is a common compound, a new synthetic route is introduced below.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.pyrazoles-derivatives.com\/?p=6193\" \/>\n<meta property=\"og:site_name\" content=\"pyrazoles-derivatives\" \/>\n<meta property=\"article:published_time\" content=\"2021-09-05T19:31:22+00:00\" \/>\n<meta name=\"author\" content=\"Jessica.F\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Jessica.F\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=6193\",\"url\":\"https:\/\/www.pyrazoles-derivatives.com\/?p=6193\",\"name\":\"Share a compound :\",\"isPartOf\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#website\"},\"datePublished\":\"2021-09-05T19:31:22+00:00\",\"author\":{\"@id\":\"https:\/\/www.pyrazoles-derivatives.com\/#\/schema\/person\/d9a9f27bed675392c6f363a01ffd49f1\"},\"description\":\"Related Products of 1192-21-8, In the next few decades, the world population will flourish. 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