4-(4,5-二氢呋喃-2-基)-3,5-二甲基-1-苯基-1,4-二氢吡嗪-2,6-二甲酸二乙酯
Diethyl 4-(4,5-dihydro-furan-2-yl)-3,5-di-methyl-1-phenyl-1,4-dihydro-pyrazine-2,6-dicarboxyl-ate.
作者信息
He Jing-Yu, Tan Zhi-Lin, Yan Hong
机构信息
College of Life Science and Bioengineering, Beijing University of Technology, Beijing 100124, People's Republic of China.
出版信息
Acta Crystallogr Sect E Struct Rep Online. 2009 Apr 25;65(Pt 5):o1129. doi: 10.1107/S1600536809013749.
In the title compound, C(22)H(26)N(2)O(5), the central 1,4-dihydro-pyrazine ring adopts a boat conformation, while the benzene ring and the two disordered components of the furan ring are inclined at angles of 77.9 (5) and 61.9 (7)°. Three of the C atoms of the furan ring are disordered over two positions with occupancies of 0.655 (18) and 0.345 (18). In the crystal structure, weak inter-molecular C-H⋯O hydrogen bonds link the mol-ecules into chains propagating in [010].
在标题化合物C₂₂H₂₆N₂O₅中，中心的1,4 - 二氢吡嗪环呈船式构象，而苯环和呋喃环的两个无序组分的倾斜角度分别为77.9 (5)°和61.9 (7)°。呋喃环的三个C原子在两个位置上无序，占有率分别为0.655 (18)和0.345 (18)。在晶体结构中，弱的分子间C—H⋯O氢键将分子连接成沿[010]方向延伸的链。
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