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首页> 外文期刊>Crystallography reports >X-ray mapping in heterocyclic design: XV. Tricyclic heterocycles based on 2-oxo-2,5,6,7-tetrahydro-1H-cyclopenta[b]pyridine-3-carbonitrile
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X-ray mapping in heterocyclic design: XV. Tricyclic heterocycles based on 2-oxo-2,5,6,7-tetrahydro-1H-cyclopenta[b]pyridine-3-carbonitrile

机译：杂环设计中的X射线映射：XV。基于2-氧代-2,5,6,7-四氢-1H-环戊[b]吡啶-3-甲腈的三环杂环

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The structures of five compounds are studied using single-crystal X-ray diffraction: 2-oxo-2.5 6 7-tetrahydro-1H-cyclopenta[b]pyridine-3-carbonitrile [a = 15.641(8) Angstrom, b = 9.373(5) Angstrom, c = 7.387(4) Angstrom, 92.91(5)degrees, Z = 4, space group P2(1)/c]; 1-[2-(4-chlorophenyl)-2-oxoethyl]-2-oxo-2,5,6,7-tetrahydro-1H-cyclopenta[b]pyridine-3-carbonitrile [a = 4.728(4) Angstrom, b = 28.035(11) Angstrom, c = 11.184(3) Angstrom, Z = 4, space group P2(1)2(1)2(1)]; 2-[2-(4-chlorophenyl)-2-oxoethoxy]-6,7-dihydro-5H-cyclopenta[b]pyridine-3-carbonitrile [a = 10.1202(13) Angstrom, b = 11.2484(18) Angstrom, c = 13.4323(19) Angstrom, beta = 102.05(1)degrees, Z = 4, space group P2(1)/c]; 2-(4-chlorophenyl)-3a,6,7,8-tetrahydrocyclopenta[e][1.3]oxazolo[3.2-a]pyridine-4-carboxamide perchlorate [a = 7.702(2) Angstrom, b = 9.599(3) Angstrom, c = 23.798(5) Angstrom, beta = 93.44(2)degrees, Z = 4, space group P2(1)/c]; and (3-amino-6,7-dihydro-5H-cyclopenta[b]furo[3.2-e]pyridin-2-yl)(4-chlorophenyl)methanone [a = 7.3273(2) Angstrom, b = 13.390(3) Angstrom, c = 28.792(8) Angstrom, Z = 8, space group Pbca]. The structures are solved using direct methods and refined by the full-matrix least-squares procedure in the anisotropic approximation to R = 0.0580, 0.0724, 0.0469, 0.0477, and 0.0418, respectively. (C) 2005 Pleiades Publishing, Inc.
机译：使用单晶X射线衍射研究了五种化合物的结构：2-氧代-2.5 6 7-四氢-1H-环戊[b]吡啶-3-腈[a = 15.641（8）埃，b = 9.373（ 5）埃，c = 7.387（4）埃，92.91（5）度，Z = 4，空间群P2（1）/ c]; 1- [2-（4-氯苯基）-2-氧代乙基] -2-氧代-2,5,6,7-四氢-1H-环戊[b]吡啶-3-甲腈[a = 4.728（4）埃， b ＝ 28.035（11）埃，c ＝ 11.184（3）埃，Z ＝ 4，空间群P2（1）2（1）2（1）]; 2- [2-（4-氯苯基）-2-氧乙氧基] -6,7-二氢-5H-环戊[b]吡啶-3-甲腈[a = 10.1202（13）埃，b = 11.2484（18）埃， c = 13.4323（19）埃，beta = 102.05（1）度，Z = 4，空间群P2（1）/ c]; 2-（4-氯苯基）-3a，6,7,8-四氢环戊[e] [1.3]恶唑并[3.2-a]吡啶-4-羧酰胺高氯酸盐[a = 7.702（2）埃，b = 9.599（3）埃，c = 23.798（5）埃，β= 93.44（2）度，Z = 4，空间群P2（1）/ c];和（3-氨基-6,7-二氢-5H-环戊[b]呋喃[3.2-e]吡啶-2-基）（4-氯苯基）甲酮[a = 7.3273（2）埃，b = 13.390（3 ），c = 28.792（8），Z = 8，空间群Pbca]。使用直接方法求解结构，并通过全矩阵最小二乘法在各向异性近似下分别精化为R = 0.0580、0.0724、0.0469、0.0477和0.0418。 （C）2005年Pleiades Publishing，Inc.

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