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Crystal structure of 1,7,8,9-tetra-chloro-4-(3,5-di-chloro-benz-yl)-10,10-dimeth-oxy-4-aza-tri-cyclo-[5.2.1.0(2,6)]dec-8-ene-3,5-dione.

ABSTRACT: In the title compound, C17H11Cl6NO4, the configuration of the cyclo-alkene skeleton is endo,cis. The benzene ring is twisted by 58.94 (8)° from the attached pyrrolidine ring. Two carbonyl groups play a key role in the crystal packing. A short inter-molecular C⋯O distance of 3.017 (3) Å reveals that one carbonyl group is involved in dipole-dipole inter-actions, which link two adjacent enanti-omers into an inversion dimer. Another carbonyl group provides an acceptor for the weak inter-molecular C-H⋯O hydrogen bonds which link these dimers into layers parallel to (011).

SUBMITTER: Liu H

PROVIDER: S-EPMC4331899 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature

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Crystal structure of 1,7,8,9-tetra-chloro-4-(3,5-di-chloro-benz-yl)-10,10-dimeth-oxy-4-aza-tri-cyclo-[5.2.1.0(2,6)]dec-8-ene-3,5-dione.

Liu He H Zhong Jia-Liang JL Sun Wen-Xia WX Gong Yan-Qing YQ Liu Li-Hong LH

Acta crystallographica. Section E, Crystallographic communications 20150101 Pt 1

In the title compound, C17H11Cl6NO4, the configuration of the cyclo-alkene skeleton is endo,cis. The benzene ring is twisted by 58.94 (8)° from the attached pyrrolidine ring. Two carbonyl groups play a key role in the crystal packing. A short inter-molecular C⋯O distance of 3.017 (3) Å reveals that one carbonyl group is involved in dipole-dipole inter-actions, which link two adjacent enanti-omers into an inversion dimer. Another carbonyl group provides an acceptor for the weak inter-molecular C- ...[more]

PMID: 25705480

Similar Datasets

Crystal structure of 1,7,8,9-tetra-chloro-4-(2-fluoro-benz-yl)-10,10-dimeth-oxy-4-aza-tri-cyclo-[5.2.1.0(2,6)]dec-8-ene-3,5-dione.

Project description:In the title compound, C17H12Cl4FNO4, the configuration of the cyclo-alkene skeleton is endo,cis. The benzene ring is twisted by 71.01 (11)° from the attached pyrrolidine ring. In the crystal, one of the methine groups of the fused-ring system forms a weak C-H⋯O hydrogen bond. The other methine groups participates in a C-H⋯F inter-action to the same adjacent mol-ecule. Together, these generate [010] chains.

| S-EPMC4331900 | biostudies-literature

1,7,8,9,10,10-Hexachloro-4-(2-phenyl-eth-yl)-4-aza-tricyclo-[5.2.1.0]dec-8-ene-3,5-dione.

Project description:In the title compound, C(17)H(11)Cl(6)NO(2), the six-membered ring of the norbornene moiety adopts a boat conformation whereas the two five-membered rings adopt envelope conformations. The phenyl ring and the ring of the succinimide moiety are almost coplanar [dihedral angle = 7.44 (14)°]. The crystal packing is stabilized by a weak inter-molecular C-H⋯O hydrogen bond.

| S-EPMC3151925 | biostudies-literature

4-(2-Amino-phen-yl)-10-oxa-4-aza-tricyclo-[5.2.1.0]dec-8-ene-3,5-dione.

Project description:In the title compound, C(14)H(12)N(2)O(3), the essentially planar pyrrole ring [maximum deviation = 0.037 (4) Å] and the benzene ring form a dihedral angle of 69.5 (2)°. In the crystal, inter-molecular N-H⋯O hydrogen bonds connect mol-ecules into chains along [001]. Additional stabilization is provided by weak inter-molecular C-H⋯O hydrogen bonds.

| S-EPMC3052145 | biostudies-literature

1,7,8,9,10,10-Hexachloro-4-(thio-phen-2-ylmeth-yl)-4-aza-tricyclo-[5.2.1.0]dec-8-ene-3,5-dione.

Project description:In the title compound, C(14)H(7)Cl(6)NO(2)S, the six-membered ring of the aza-tricyclo system has a boat conformation whereas the five-membered rings have an envelope conformation. The thio-phene ring and the ring of the succinimide moiety enclose a dihedral angle of 67.2 (1)°. The crystal packing is stabilized by weak inter-molecular C-H⋯O hydrogen bonds.

| S-EPMC3200576 | biostudies-literature

exo-1,7-Dimethyl-4-phenyl-10-oxa-4-aza-tri-cyclo-[5.2.1.0(2,6)]dec-8-ene-3,5-dione.

Project description:The title compound, C16H15NO3, consists of an oxabicycle fused to an N-phenyl-substituted pyrrolidine ring anti to the double bond, affording the exo isomer. In the oxabicycle system, the six-membered ring presents a boat conformation, while the heterocyclic rings show envelope conformations with the O atom projected out of the plane. In the crystal, adjacent mol-ecules are linked via weak C-H⋯O hydrogen bonds, forming chains propagating along the a-axis direction. The chains are linked by C-H⋯π inter-actions, forming two-dimensional networks lying parallel to the ac plane.

| S-EPMC3885034 | biostudies-literature

exo,exo-4-(2-Hy-droxy-eth-yl)-10-oxa-4-aza-tricyclo-[5.2.1.0]dec-8-ene-3,5-dione.

Project description:In the crystal of the title compound, C(10)H(11)NO(4), the hy-droxy group forms an O-H⋯O(carbon-yl) hydrogen bond with an adjacent molecule, so forming chains which extend along (010). Further weak C-H⋯O hydrogen-bonding associations give an infinite three-dimensional network structure.

| S-EPMC3297917 | biostudies-literature

4-(3,5-Dioxo-10-oxa-4-aza-tricyclo-[5.2.1.0]decan-4-yl)-10-oxa-4-aza-tricyclo-[5.2.1.0]decane-3,5-dione.

Project description:In the title compound, C(16)H(16)N(2)O(6), the dihedral angle between the two pyrrolidine rings is 79.38?(14)°.

| S-EPMC3275059 | biostudies-literature

2-(3,5-Dioxo-4-aza-tri-cyclo-[5.2.1.0(2,6)]dec-8-en-4-yl)acetic acid.

Project description:The asymmetric unit of the title compound, C11H11NO4, contains two mol-ecules, A and B, with different conformations: in mol-ecule A, the norborne and carb-oxy-lic acid groups lie to the same side of the heterocycle, whereas in a mol-ecule B, they lie on opposite sides. In the crystal, the A mol-ecules form R 2 (2)(8) carb-oxy-lic acid inversion dimers, linked by pairs of O-H⋯O hydrogen bonds. The B mol-ecules link to one of the ketone O atoms of the A mol-ecule by an O-H⋯O inter-action, resulting in tetra-mers (two A and two B mol-ecules). The tetra-mers are linked by weak C-H⋯O inter-actions, generating a three-dimensional network.

| S-EPMC3884503 | biostudies-literature

exo-4-[(1H-Benzimidazol-2-yl)meth-yl]-10-oxa-4-aza-tricyclo-[5.2.1.0]decane-3,5-dione.

Project description:In the title compound, C(16)H(15)N(3)O(3), the dihedral angle between the approximately planar benzimidazolyl group (r.m.s. deviation = 0.010?Å) and the pyrrolidine ring is 78.20?(6)°. The C-C-N bond angle of the bridging CH(2) group is 112.14?(16)°. In the crystal, mol-ecules are linked via N-H?N hydrogen bonds, forming infinite chains parallel to [101] and [10[Formula: see text]].

| S-EPMC3213433 | biostudies-literature

4-Oxatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione Derivatives as NMDA Receptor- and VGCC Blockers with Neuroprotective Potential.

Project description:The impact of excitotoxicity mediated by N-methyl-D-aspartate (NMDA) receptor overactivation and voltage gated calcium channel (VGCC) depolarization is prominent among the postulated processes involved in the development of neurodegenerative disorders. NGP1-01, a polycyclic amine, has been shown to be neuroprotective through modulation of the NMDA receptor and VGCC, and attenuation of MPP+-induced neurotoxicity. Recently, we reported on the calcium modulating effects of tricycloundecene derivatives, structurally similar to NGP1-01, on the NMDA receptor and VGCC of synaptoneurosomes. In the present study, we investigated novel 4-oxatricyclo[5.2.1.02,6]dec-8-ene-3,5-dione derivatives for their cytotoxicity, neuroprotective effects via attenuation of MPP+-induced neurotoxicity and calcium influx inhibition abilities through the NMDA receptor and VGCC using neuroblastoma SH-SY5Y cells. All compounds, in general, showed low or no toxicity against neuroblastoma cells at 10-50 µM concentrations. At 10 µM, all compounds significantly attenuated MPP+-induced neurotoxicity as evident by the enhancement in cell viability between 23.05 ± 3.45% to 53.56 ± 9.29%. In comparison to known active compounds, the derivatives demonstrated mono or dual calcium modulating effect on the NMDA receptor and/or VGCC. Molecular docking studies using the NMDA receptor protein structure indicated that the compounds are able to bind in a comparable manner to the crystallographic pose of MK-801 inside the NMDA ion channel. The biological characteristics, together with results from in silico studies, suggest that these compounds could act as neuroprotective agents for the purpose of halting or slowing down the degenerative processes in neuronal cells.

| S-EPMC7582567 | biostudies-literature

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