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10?-Hy-droxy-4,9-dimethyl-13-(morph-o-lin-4-ylmeth-yl)-3,8,15-trioxatetra-cyclo-[10.3.0.0.0]penta-decan-14-one.

ABSTRACT: The title compound, C(19)H(29)NO(6), was synthesized from 9?-hy-droxy-parthenolide (9?-hy-droxy-4,8-dimethyl-12-methyl-ene-3,14-dioxatricyclo-[9.3.0.0(2,4)]tetra-dec-7-en-13-one), which was isolated from the chloro-form extract of the aerial parts of Anvillea radiata. The mol-ecule contains a fused five- and ten-membered ring system. The ten-membered ring adopts an approximate chair-chair conformation, while the five-membered ring is in an envelope conformation, with the C atom closest to the hy-droxy group forming the flap. In the crystal, weak C-H?O hydrogen bonds connect the mol-ecules into layers parallel to (001). An intra-molecular O-H?N hydrogen bond is also present.

SUBMITTER: Moumou M

PROVIDER: S-EPMC3254508 | biostudies-literature | 2012 Jan

REPOSITORIES: biostudies-literature

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10α-Hy-droxy-4,9-dimethyl-13-(morph-o-lin-4-ylmeth-yl)-3,8,15-trioxatetra-cyclo-[10.3.0.0.0]penta-decan-14-one.

Moumou Mohamed M Benharref Ahmed A Oudahmane Abdelghani A Mellouki Fouad F Berraho Moha M

Acta crystallographica. Section E, Structure reports online 20111217 Pt 1

The title compound, C(19)H(29)NO(6), was synthesized from 9α-hy-droxy-parthenolide (9α-hy-droxy-4,8-dimethyl-12-methyl-ene-3,14-dioxatricyclo-[9.3.0.0(2,4)]tetra-dec-7-en-13-one), which was isolated from the chloro-form extract of the aerial parts of Anvillea radiata. The mol-ecule contains a fused five- and ten-membered ring system. The ten-membered ring adopts an approximate chair-chair conformation, while the five-membered ring is in an envelope conformation, with the C atom closest to the hy ...[more]

PMID: 22259452

Similar Datasets

10?-Hy-droxy-4,9-dimethyl-13-(pipyridin-1-ylmethyl)-3,8,15-trioxatetra-cyclo-[10.3.0.0.0]tetra-decan-14-one.

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10α-Hy-droxy-13-{[4-(2-hy-droxy-phen-yl)piperazin-1-yl]meth-yl}-4,9-dimethyl-3,8,15-trioxatetra-cyclo-[10.3.0.0(2,4).0(7,9)]penta-decan-14-one.

Project description:The title compound, C(25)H(34)N(2)O(6), was synthesized from 9α-hy-droxy-parthenolide (9α-hy-droxy-4,8-dimethyl-12-methyl-ene-3,14-dioxatricyclo-[9.3.0.0(2,4)]tetra-dec-7-en-13-one), which was isolated from the chloro-form extract of the aerial parts of Anvillea radiata. The ten-membered ring adopts an approximate chair-chair conformation, while the piperazine ring displays a near regular chair conformation and the five-membered ring an envelope conformation with the C atom closest to the hy-droxy group forming the flap. The mol-ecular conformation is stabilized by an O-H⋯N hydrogen bond, which generates an S(7) loop, and the crystal structure features weak C-H⋯O inter-actions.

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10?-Hy-droxy-4,9-dimethyl-13-[(pyrrol-idin-1-yl)meth-yl]-3,8,15-trioxatetra-cyclo-[10.3.0.0.0]penta-decan-14-one.

Project description:The title compound, C(19)H(29)NO(5), was synthesized from 9?-hy-droxy-parthenolide (9?-hy-droxy-4,8-dimethyl-12-methyl-ene-3,14-dioxatricyclo-[9.3.0.0(2,4)]tetra-dec-7-en-13-one), which was isolated from the chloro-form extract of the aerial parts of Anvillea radiata. The mol-ecule is built up from two fused five- and ten-membered rings with the (pyrrolidin-4-yl)methyl group as a substituent. The two five-membered ring display the same envelope conformations, whereas the ten-membered ring adopts an approximate chair-chair conformation. The dihedral angle between the ten-membered ring and the lactone ring is 21.81?(9)°. An intra-molecular O-H?N hydrogen bond stabilizes the mol-ecular conformation. In the crystal, inter-molecular C-H?O inter-actions link the mol-ecules into chains parallel to the c axis.

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10?-Hy-droxy-4,9-dimethyl-13-[(4-phenyl-piperazin-1-yl)meth-yl]-3,8,15-trioxatetra-cyclo-[10.3.0.0.0]tetra-decan-14-one.

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10?-Hy-droxy-13-{[4-(4-meth-oxy-phen-yl)piperazin-1-yl]meth-yl}-4,9-dimethyl-3,8,15-trioxatetra-cyclo-[10.3.0.0.0]penta-decan-14-one.

Project description:The title compound, C(26)H(36)N(2)O(6), was synthesized from 9?-hy-droxy-parthenolide (9?-hy-droxy-4,8-dimethyl-12-methylen-3,14-dioxa-tricyclo-[9.3.0.0(2,4)]tetra-dec-7-en-13-one), which was isolated from the chloro-form extract of the aerial parts of Anvillea radiata. The mol-ecule is built up from fused five- and ten-membered rings with two additional ep-oxy ring systems and a meth-oxy-phenyl-piperazine group as a substituent. The ten-membered ring adopts an approximate chair-chair conformation, while the piperazine ring displays a chair conformation and the five-membered ring shows an envelope conformation with the C atom closest to the hy-droxy group forming the flap. The mol-ecular conformation is determined by an O-H?N hydrogen bond between the hy-droxy group and a piperazine N atom. The crystal structure is built up by weak C-H?O inter-actions.

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(1S,2R,3R,6R,7S,8R,10S,11S)-13-{[4-(4-Chloro-phen-yl)piperazin-1-yl]meth-yl}-10-hy-droxy-4,9-dimethyl-3,8,15-trioxatetra-cyclo-[10.3.0.0(2,4).0(7,9)]penta-decan-14-one.

Project description:The title compound, C(25)H(33)ClN(2)O(5), was synthesized from 9α-hy-droxy-parthenolide (9α-hy-droxy-4,8-dimethyl-12-methyl-ene-3,14-dioxatricyclo-[9.3.0.0(2,4)]tetra-dec-7-en-13-one), which was isolated from the chloro-form extract of the aerial parts of Anvillea radiata. The mol-ecule is built up from fused five- and ten-membered rings with two additional ep-oxy ring systems and a chloro-phenyl-piperazine group as a substituent. The ten-membered ring adopts an approximate chair-chair conformation, while the piperazine ring displays a chair conformation and the five-membered ring shows an envelope conformation with the C atom closest to the hy-droxy group forming the flap. The mol-ecular conformation is stabilized by an intra-molecular O-H⋯N hydrogen bond between the hy-droxy group and a piperazine N atom. The crystal structure is stabilized by weak C-H⋯O inter-actions.

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2,3-Di-hydro-1<i>H</i>-cyclo-penta-[<i>b</i>]naphthalene-4,9-dione.

Project description:The title compound, C13H10O2, crystallizes with two almost planar mol-ecules in the asymmetric unit. In the crystal, slipped π-π stacking inter-actions help to establish the packing with the shortest centroid-centroid separation being 3.8195 (18) Å.

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(2S,7S)-10-Ethyl-1,8,10,12-tetra-aza-tetra-cyclo-[8.3.1.1(8,12).0(2,7)]penta-decan-10-ium iodide.

Project description:The title chiral quaternary ammonium salt, C(13)H(25)N(4) (+)·I(-), was synthesized through the Menschutkin reaction between the cage aminal (2S,7S)-1,8,10,12-tetra-aza-tetra-cyclo-[8.3.1.1(8,12).0(2,7)]penta-decane and ethyl iodide. The quaternization occurred regioselectively on the nitrogen with major sp3 character. The crystal structure consists of anions and cations separated by normal distances. Ions are not linked through C-H⋯I hydrogen bonds.

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Project description:The title compound, C(11)H(12)N(4)O(2), was unexpectedly obtained in the reaction of ?,?'-disubstituted cyclo-penta-none with 1,1,3,3-tetra-meth-oxy-propane in the presence of dioxane saturated with HCl. It belongs to a previously unknown class of gem-bihetaryl ketones which may be useful for screening of new substances with biological activity. In the studied structure, the cyclo-penta-none moiety adopts an envelope conformation, with the hy-droxy-bearing C atom as the flap [deviation from basal plane = 0.643?(3)?Å]. The dihedral angle between the two pyrazole rings is 80.02?(8)°. In the crystal, inversion dimers are formed via a pair of O-H?N hydrogen bonds.

| S-EPMC3297902 | biostudies-other

(2E,5E)-2,5-Bis(4-hy-droxy-3-meth-oxy-benzyl-idene)cyclo-penta-none ethanol monosolvate.

Project description:In the title structure, C21H20O5·C2H5OH, the curcumine-type mol-ecule has a double E conformation for the two benzyl-idene double bonds [C=C = 1.342 (4) and 1.349 (4) Å] and is nearly planar with respect to the non-H atoms (r.m.s. deviation from planarity = 0.069 Å). The two phenolic OH groups form bifurcated hydrogen bonds with intra-molecular branches to adjacent meth-oxy O atoms and inter-molecular branches to either a neighbouring mol-ecule or an ethanol solvent mol-ecule. The ethanol O atom donates a hydrogen bond to the keto O atom. These hydrogen bonds link the constituents into layers parallel to (101) in the crystal structure.

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