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Methyl 9-hy-droxy-15-methyl-2-oxo-11-(pyren-1-yl)-10-oxa-15-aza-tetra-cyclo-[7.6.0.0(1,12).0(3,8)]penta-deca-3(8),4,6-triene-12-carboxyl-ate.

ABSTRACT: In the title compound, C32H25NO5, the furan and pyrrole rings each adopt an envelope conformation, the respective flap atoms being the C atom bearing the pyrene substituent and the CH2 atom adjacent to the N atom. The mol-ecular conformation is stabilized by an intra-molecular O-H?N hydrogen bond. In the crystal, C-H?O contacts link the mol-ecules, forming a two-dimensional network parallel to (001).

SUBMITTER: Sharmila P

PROVIDER: S-EPMC3790429 | biostudies-other | 2013

REPOSITORIES: biostudies-other

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Methyl 9-hy-droxy-15-methyl-2-oxo-11-(pyren-1-yl)-10-oxa-15-aza-tetra-cyclo-[7.6.0.0(1,12).0(3,8)]penta-deca-3(8),4,6-triene-12-carboxyl-ate.

Sharmila P P Jagadeesan G G Raju Rajesh R Raghavachary Raghunathan R Aravindhan S S

Acta crystallographica. Section E, Structure reports online 20130921 Pt 10

In the title compound, C32H25NO5, the furan and pyrrole rings each adopt an envelope conformation, the respective flap atoms being the C atom bearing the pyrene substituent and the CH2 atom adjacent to the N atom. The mol-ecular conformation is stabilized by an intra-molecular O-H⋯N hydrogen bond. In the crystal, C-H⋯O contacts link the mol-ecules, forming a two-dimensional network parallel to (001). ...[more]

PMID: 24098248

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2,9,12,15,18,25,27,34,37,40,43,50-Dodeca-oxa-56-aza-hepta-cyclo-[24.24.5.1(51,55).0(3,8).0(19,24).0(28,33).0(44,49)]hexa-penta-conta-3,5,7,19(24),20,22,28(33),29,31,44,46,48,51,53,55-penta-deca-ene.

Project description:The title compound, C(43)H(45)NO(12), was prepared from the reaction of 2,6-bis-(dibromo-meth-yl)pyridine and bis-phenol in the presence of caesium carbonate as a base. The central ring makes dihedral angles of 64.83?(6), 13.48?(6), 56.96?(6) and 66.21?(6)° with the peripheral rings. In the crystal, mol-ecules are linked by weak C-H?O and C-H?? inter-actions, forming a folded structure.

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2,10-Dihydr-oxy-13-methyl-13-aza-tetra-cyclo-[9.3.1.0.0]penta-deca-3(8),4,6-triene-9,15-dione.

Project description:In the title compound, C(15)H(15)NO(4), the n-methyl-piperidone ring adopts a chair conformation and both five-membered rings adopt a twist conformation. An intra-molecular O-H?O hydrogen bond is observed. Inversion-related mol-ecules are linked into R(2) (2)(10) dimers by pairs of O-H?O hydrogen bonds. The crystal structure is further stabilized by C-H?O hydrogen bonds.

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Penta-cyclo-[8.2.1.1(4,7).0(2,9).0(3,8)]tetra-deca-5,11-diene.

Project description:The title compound, C(14)H(16), was prepared through [2 + 2] cyclo-addition of norbornadiene. There are two independent mol-ecules in the asymmetric unit: each is centrosymmetric with the centroid of the four-membered ring located about an inversion center. Each mol-ecule possesses an exo-trans-exo conformation.

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Project description:The title compound, C(14)H(21)NO(4), has been synthesized from o-dihydroxy-benzene by a three-step reaction. There are two chemically equal but crystallographically independent mol-ecules in the asymmetric unit. The crystal packing is governed by C-H?O hydrogen bonds and C-H?? inter-actions, forming an infinite network.

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Methyl 9-(4-meth-oxy-phen-yl)-19-methyl-3,12-di-aza-penta-cyclo-[10.7.0.0(2,10).0(3,8).0(13,18)]nona-deca-1(19),13(18),14,16-tetra-ene-10-carboxyl-ate.

Project description:The title ester, C27H30N2O3, crystallizes with two independent mol-ecules in the asymmetric unit whose geometrical features are similar. In each mol-ecule, the pyrrolidine ring adopts an envelope conformation, with the fused C atom shared with the piperidine ring as the flap, and the piperidine ring adopts a chair conformation. In the crystal, C-H?? inter-actions link the inversion-related molecules and form a dimeric arrangement in the unit cell.

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Crystal structure of 14-methyl-11-(3-methyl-phen-yl)-12-oxa-8,14-di-aza-tetra-cyclo-[8.3.3.0(1,10).0(2,7)]hexa-deca-2(7),3,5-triene-9,13-dione.

Project description:In the title compound, C21H20N2O3, the lactone ring adopts an envelope conformation with the quaternary C atom bonded to two other C atoms as the flap. The fused pyrrolidine ring adopts a twisted conformation about the Cq-N (q = quaternary) bond. In the crystal, inversion dimers linked by pairs of N-H?O hydrogen bonds generate R 2 (2)(8) loops. The dimers are linked into [110] chains by pairs of C-H?O inter-actions, which generate R 2 (2)(14) loops.

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Methyl 11-hy-droxy-9-[1-(4-meth-oxy-phen-yl)-4-oxo-3-phenyl-azetidin-2-yl]-18-oxo-10-oxa-2-aza-penta-cyclo-[9.7.0.0(1,8).0(2,6).0(12,17)]octa-deca-12(17),13,15-triene-8-carboxyl-ate.

Project description:In the title compound, C34H32N2O7, the furan ring adopts a twist conformation and both the pyrrolidine rings adopt envelope conformations with O and C as flap atoms. The ?-lactam ring makes a dihedral angles of 80.20?(10)° with the furan ring, of 75.55?(10)° with the pyrrolidine ring, of 12.26?(10)° with the meth-oxy-phenyl ring and of 73.77?(13)° with the phenyl ring. The O atom attached to the ?-lactam ring deviates by 0.0385?(13)?Å from the ring plane. The mol-ecular conformation is stabilized by intra-molecular O-H?N and C-H?O hydrogen bonds. The packing of the crystal is stabilized by inter-molecular C-H?O hydrogen bonds, which form a chain running along the b axis.

| S-EPMC3588541 | biostudies-literature

11-Hy-droxy-9-[1-(4-methyl-phen-yl)-4-oxo-3-phenyl-azetidin-2-yl]-18-oxo-10-oxa-2-aza-penta-cyclo-[9.7.0.0(1,8).0(2,6).0(12,17)]octa-deca-12,14,16-triene-8-carbonitrile.

Project description:In the title compound, C33H29N3O5, the four-membered ring of the ?-lactam fragment is essentially planar (r.m.s. deviation = 0.0122?Å), with the carbonyl O atom displaced from this ring by 0.856?(9)?Å. The mean planes of the meth-oxy-phenyl and phenyl rings are inclined at dihedral angles 85.10?(7) and 21.56?(14)°, respectively, with respect to the mean plane of the four-membered ring. The pyrrolidine rings adopt envelope conformations with C atoms lying 0.535?(4) and 0.519?(4)?Å out of the planes formed by the remaining ring atoms. The furan ring also adopts an envelope conformation with a C atom 0.560?(3)?Å out of the plane formed by the remaining ring atoms. The nine-membered indene ring is almost planar (r.m.s. deviation = 0.0240?Å), with the carbonyl O atom displaced by 0.145?(3)?Å from this ring. The mol-ecular structure is stabilized by a strong intra-molecular O-H?N hydrogen bond and the crystal structure is consolidated by C-H?O hydrogen bonds.

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