Synthesis and the Crystal Structure of (E)-2-(7-(3-(Thiophen-2-yl)acrylamido)-2,3-dihydro-5-oxobenzo[e][1,4]oxazepin-1(5H)-yl)ethyl acetate
作者:Yun J. Lee、Jason R. King、Bala Chandra Chenna、Samuel B. Owens、Jason L. Freeman、Gary M. Gray、Sadanandan E. Velu
DOI:10.1007/s10870-009-9588-y
日期:2009.12
Details of the synthesis and crystal structure determination of (E)-2-(7-(3-(thiophen-2-yl)acrylamido)-2,3-dihydro-5-oxobenzo[e][1,4]oxazepin-1(5H)-yl)ethyl acetate are presented. The compound crystallizes in the triclinic P−1 space group (a = 8.3377(17), b = 9.792(2), c = 12.469(3) Å, α = 96.39(3)°, β = 108.50(3)°, γ = 97.68(3)°, V = 943.9(3) Å3, Z = 2). Interesting features of the structure include intermolecular hydrogen bonding between the amide proton on one molecule and the carbonyl oxygen of the dihydrooxazepinone ring on an adjacent molecule, the boat conformation of the dihydrooxazepinone ring, and π-π stacking between thiophene and phenyl rings on adjacent molecules with a distance between centroids of 3.79(2) Å. Synthesis and the crystal structure determination of (E)-2-(7-(3-(thiophen-2-yl)acrylamido)-2,3-dihydro-5-oxobenzo[e][1,4]oxazepin-1(5H)-yl)ethyl acetate are presented.
本文详细介绍了 (E)-2-(7-(3-(噻吩-2-基)丙烯酰胺基)-2,3-二氢-5-氧代苯并[e][1,4]氧氮杂卓-1(5H)-基)乙酸乙酯的合成和晶体结构测定。该化合物在三linic P-1 空间群中结晶(a = 8.3377(17), b = 9.792(2), c = 12.469(3) Å, α = 96.39(3)°, β = 108.50(3)°, γ = 97.68(3)°, V = 943.9(3) Å3, Z = 2).该结构的有趣特征包括:一个分子上的酰胺质子与相邻分子上的二氢氧杂氮杂环的羰基氧之间的分子间氢键、二氢氧杂氮杂环的舟形构象以及相邻分子上的噻吩环和苯基环之间的π-π堆叠,其中心距为 3.79(2) Å 。介绍了 (E)-2-(7-(3-(噻吩-2-基)丙烯酰胺基)-2,3-二氢-5-氧代苯并[e][1,4]氧氮杂卓-1(5H)-基)乙酸乙酯的合成和晶体结构测定。