| Synthesis and Crystal Structure of 2-Benzylsulefnyl-3-cyano-5,7-dimethyl-pyrazolo[1,5-a]pyrimidine |
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| 作者姓名： | REN Xue-Ling WU Chao GAO Ying ZOU Xiao-Mao YANG Hua-Zheng② |
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| 作者单位： | Institute of Elemento-Organic Chemistry，Nankai University，Tianjin 300071，China |
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| 基金项目： | The project was supported by the National Natural Science Foundation of China (No. 20172031) and the Research Fund for the Doctoral Program of Ministry of Education，China |
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| 摘 要： | 1 INTRODUCTION The pyrazolo1,5-a]pyrimidines are the active compositions in many pesticides and medicines. A new class of KDR (tyrosine kinase VEGFR-2) ki- nase inhibitors is discovered and found to have affi- nity for the human CRF-1 (Corticotrophin re…
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| 关 键 词： | 2-苄基硫-3-氰基-5 7-二甲基-吡唑啉酮[1 5-a]嘧啶 合成 晶体结构 C16n14N4S |
Synthesis and Crystal Structure of 2-Benzylsulefnyl- 3-cyano-5,7-dimethyl-pyrazolo[1,5-a]pyrimidine |
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| Abstract: | The title compound, C16H14N4S, has been synthesized by the reaction of pentane-2,4-dione with 5-amino-3-benzylthio-4-cyano-1-H-pyrazole in ethanol, and its crystal structure was determined by X-ray diffraction method. The crystal is of monoclinic, space group P21/n with a = 8.699(3), b = 23.139(9), c = 7.536(3) ? b = 92.400(8), V = 1515.5(10) 3, Z = 4, Mr = 294037, Dc = 1.290 g/cm3, = 0.71073 ? (MoKa) = 0.212 mm-1 and F(000) = 616. The structure was refined to R = 0.0533 and wR = 0.1141 for 2672 unique reflections with Rint = 0.06. The structure is a dimmer linked by intermolecular contact S(1)…HC(8) with the S(1)C(8) distance of 3.875 and the angle of 164.8. |
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| Keywords: | pyrazolo[1 5-a]pyrimidine crystal structure synthesis |
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