首页> 美国卫生研究院文献>Acta Crystallographica Section E: Crystallographic Communications >Crystal structure of 3-{4-(2-meth­oxy­phen­yl)piperazin-1-ylmeth­yl}-5-(thio­phen-2-yl)-134-oxa­diazole-2(3H)-thione
【2h】

Crystal structure of 3-{4-(2-meth­oxy­phen­yl)piperazin-1-ylmeth­yl}-5-(thio­phen-2-yl)-134-oxa­diazole-2(3H)-thione

机译:3-{4-(2-甲基­氧基苯­基)哌嗪-1-基甲基­基} -5-(硫­苯-2-基)-134-氧杂二唑-2(3H)-硫酮的晶体结构

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摘要

The title compound, C18H20N4O2S2, is a new 1,3,4-oxa­diazole and a key pharmacophore of several biologically active agents. It is composed of a meth­yl(thio­phen-2-yl)-1,3,4-oxa­diazole-2(3H)-thione moiety linked to a 2-meth­oxy­phenyl unit via a piperazine ring that has a chair conformation. The thio­phene ring mean plane lies almost in the plane of the oxa­diazole ring, with a dihedral angle of 4.35 (9)°. The 2-meth­oxy­phenyl ring is almost normal to the oxa­diazole ring, with a dihedral angle of 84.17 (10)°. In the crystal, mol­ecules are linked by weak C—H⋯S hydrogen bonds and C—H⋯π inter­actions, forming layers parallel to the bc plane. The layers are linked via weak C—H⋯O hydrogen bonds and slipped parallel π–π inter­actions [inter­centroid distance = 3.6729 (10) Å], forming a three-dimensional structure. The thio­phene ring has an approximate 180° rotational disorder about the bridging C—C bond.
机译:标题化合物C18H20N4O2S2是一种新的1,3,4-氧杂­二唑,是几种生物活性剂的关键药效​​团。它由甲基(硫代吩-2-基)-1,3,4-氧杂二唑-2(3H)-硫酮部分组成,该部分通过具有椅子构象的哌嗪环与2-甲基氧代苯基单元相连。噻吩环的平均平面几乎位于氧杂二唑环的平面内,二面角为4.35(9)°。 2-甲基­氧基­苯环几乎垂直于杂二唑环,二面角为84.17(10)°。在晶体中,分子通过弱的C⋯HS氢键和C—Hπ相互作用连接,形成平行于bc平面的层。这些层通过弱的CHHO氢键和滑​​动的平行π-π相互作用[质心间距离= 3.6729(10)Å]相连,形成三维结构。噻吩环在桥接的CC键周围具有大约180°的旋转紊乱。

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