Methyl rac-(2R,11S,12R)-12-(2-chlorophenyl)-22-oxo-9,13,21-trioxapentacyclo[12.8.0.02,11.03,8.015,20]docosa-1(14),3,5,7,15(20),16,18-heptaene-11-carboxylate

被引：1

作者：

Swaminathan, K. ^{[1
]}

Sethusankar, K. ^{[1
]}

Sivakumar, G. ^{[2
]}

Bakthadoss, M. ^{[2
]}

机构：

[1] RKM Vivekananda Coll Autonomous, Dept Phys, Madras 600004, Tamil Nadu, India

[2] Univ Madras, Dept Organ Chem, Madras 600025, Tamil Nadu, India

来源：

ACTA CRYSTALLOGRAPHICA SECTION E-STRUCTURE REPORTS ONLINE | 2011年 / 67卷

关键词：

data-to-parameter ratio = 20.6; mean σ(C-C) = 0.002 Å; R factor = 0.046; single-crystal X-ray study; T = 293 K; wR factor = 0.143;

D O I：

10.1107/S1600536811037196

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

In the title compound C27H19ClO6, the coumarin ring system is not exactly planar, with a dihedral angle of 4.12 (7)degrees between its benzene and lactone rings. The cis-fused pyran rings adopt half-chair conformations. The carbomethoxy and chlorophenyl groups are in a trans configuration. The crystal packing is stabilized by intermolecular C-H center dot center dot center dot O interactions, which produce a centrosymmetric R-2(2)(14) dimer and two centrosymmetric R-2(2)(18) dimers connecting the molecules in a two-dimensional fashion.

引用

页码：O2673 / +

页数：12

共 2 条

[1] Crystal structure of methyl(1R*,12R*,13S*,15R*)-9-aza-11-diazo-14,16-dioxa-10-oxo-tetracyclo[10.4.0.01,15.08,13]hexadec-7-ene-12-carboxylate, C3HNHCOCN2)(C2HO2)(C6H11)COOCH3
Peters, EM
Peters, K
Ott, F
Tochtermann, W
ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES, 2001, 216 (02): : 307 - 308
[2] (5S)-5-[(4aR,8aS,9E,11S,13R,14S,16R,17R,19S)-11,19-Dihydroxy-8,10,13,16-tetramethyl-18-methylidene-3,4,5,6,8a,11,12,13,14,15,16,17,18,19,20,21-hexadecahydro-2H-14,17-epoxybenzo[2,3]cyclohexadeca[1,2-b]pyridine-7-yl]-3-methylfuran-2(5H)-one (12-Methylgymnodimine B)
Strangman, Wendy
Anttila, Matthew
Tomas, Carmelo
Wright, Jeffrey L. C.
MOLBANK, 2016, (02)

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