- 6-HETEROARYLOXY BENZIMIDAZOLES AND AZABENZIMIDAZOLES AS JAK2 INHIBITORS
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The present disclosure provides 6-heteroaryloxy benzimidazole and azabenzimidazole compounds and compositions thereof useful for inhibiting JAK2.
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Paragraph 0272-0273
(2021/11/13)
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- Method for synthesizing trans-3-hydroxy cyclobutyl formic acid
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The invention belongs to the field of organic synthesis and discloses a method for synthesizing trans-3-hydroxy cyclobutyl formic acid. The method comprises the following steps: by using an appropriate reducing agent, reducing 3-carbonyl-cyclobutane formate (C1-C6 alkyl ester) into single trans-3-hydroxy cyclobutyl formic ether in an efficient stereoselectivity manner, and further performing a Mitsunobu reaction and hydrolysis, thereby obtaining single trans-3-hydroxy cyclobutyl formic acid. The method provided by the invention is high in synthesis method raw material availability, mild in reaction condition, good in stereoselectivity and relatively high in yield; in addition, aftertreatment and purification are both easy to operate, and the method is applicable to industrial amplified production.
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Paragraph 0047; 0048; 0052
(2018/07/06)
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- 1 -(CYCLOPENT-2-EN-1 -YL)-3-(2-HYDROXY-3-(ARYLSULFONYL)PHENYL)UREA DERIVATIVES AS CXCR2 INHIBITORS
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The invention relates to 1-(3-sulfonylphenyl)-3-(cyclopent-2-en-1-yl)urea derivatives, and their use in treating or preventing diseases and conditions mediated by the CXCR2 receptor. In addition, the invention relates to compositions containing the derivatives and processes for their preparation.
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Page/Page column 149
(2015/12/18)
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