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1-(tert-But-oxy-carbon-yl)piperidine-4-carb-oxy-lic acid.

ABSTRACT: In the title compound, C(11)H(19)NO(4), the piperidine ring adopts a chair conformation. In the crystal, mol-ecules are linked by inter-molecular O-H⋯O and C-H⋯O hydrogen bonds, forming a layer parallel to the bc plane.

SUBMITTER: Fun HK

PROVIDER: S-EPMC3200981 | biostudies-literature |

REPOSITORIES: biostudies-literature

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(2R,4R)-1-(tert-But-oxy-carbon-yl)-4-meth-oxy-pyrrolidine-2-carb-oxy-lic acid.

Project description:In the title compound, C(11)H(19)NO(5), the five-membered pyrrolidine ring adopts an envelope conformation. The dihedral angles between the carboxyl group plane, the pyrrolidine ring and the meth-oxy group are 59.50?(3) and 62.02?(1)°, respectively. In the crystal, inter-molecular O-H?O hydrogen bonds link the mol-ecules into chains along [100]. The absolute configuration is assigned in accord with that of (2R,4R)-1-(tert-but-oxy-carbon-yl)-4-hy-droxy-pyrrolidine-2-carb-oxy-lic acid, which was the starting material in the synthesis.

| S-EPMC3011444 | biostudies-literature

3-(tert-But-oxy-carbon-yl)-2-(4-chloro-phen-yl)-1,3-thia-zolidine-4-carb-oxy-lic acid.

Project description:In the title compound, C(15)H(18)ClNO(4)S, the thia-zolidine ring adopts a twisted conformation about the S-C(methyl-ene) bond. The dihedral angle between the five- and six-membered rings is 77.2?(3)°. In the crystal, the mol-ecules are linked by O-H?O hydrogen bonds, generating C(7) chains propagating in [100].

| S-EPMC2983415 | biostudies-literature

(2R,4R)-3-(tert-But-oxy-carbon-yl)-2-(3-chloro-phen-yl)-1,3-thia-zolidine-4-carb-oxy-lic acid monohydrate.

Project description:In the title compound, C(15)H(18)ClNO(4)S·H(2)O, the thia-zolidine ring displays a half-chair conformation. In the crystal, the water mol-ecules are linked to the organic acid mol-ecules via inter-molecular O-H?O hydrogen bonds.

| S-EPMC3009144 | biostudies-literature

4,4'-Bipyridine-2-(carb-oxy-methyl-sulfan-yl)pyridine-3-carb-oxy-lic acid (1/1).

Project description:In the title co-crystal, C(10)H(8)N(2)·C(8)H(7)NO(4)S, the formate group is coplanar with the pyridyl ring of the acid [dihedral angle = 6.2?(7)°], while the carb-oxy-methyl-sulfanyl group makes a C-S-C-C torsion angle of 70.2?(1)° with the pyridine ring. The dihedral angle between the pyridyl rings of the 4,4'-bipyridine mol-ecule is 27.4?(1)°. The acid and the 4,4'-bipyridine mol-ecules are involved in hydrogen bonding via carb-oxy-lic O and pyridyl N atoms. The structure is further consolidated by inter-molecular C-H?O hydrogen bonds, generating a three-dimensional network.

| S-EPMC3011421 | biostudies-literature

3-(4-Meth-oxy-phen-yl)-5-methylisoxazole-4-carb-oxy-lic acid.

Project description:In the title compound, C12H11NO4, the dihedral angle between the benzene and isoxazole rings is 42.52?(8)°. The carb-oxy-lic acid group is close to being coplanar with the isoxazole ring [dihedral angle = 5.3?(2)°]. In the crystal, inversion dimers linked by pairs of O-H?O hydrogen bonds generate R2(2)(8) loops.

| S-EPMC3588455 | biostudies-literature

2-(4-Methyl-phen-yl)quinoline-4-carb-oxy-lic acid.

Project description:In the title compound, C(17)H(13)NO(2), the dihedral angle between the plane of the carb-oxy group and the quinoline mean plane is 45.05?(13)°, and that between the toluene ring mean plane and the quinoline mean plane is 25.29?(7)°. In the crystal, molecules are linked via O-H?.N hydrogen bonds, forming chains propagating along the b-axis direction. These chain are linked via C-H?O interactions, forming two-dimensional networks lying parallel to the ab plane.

| S-EPMC3470244 | biostudies-literature

5-(Hy-droxy-meth-yl)furan-2-carb-oxy-lic acid.

Project description:In the title compound, C(6)H(6)O(4), the furan ring is nearly coplanar with the carboxyl group, the maximum atomic deviation being 0.0248?(9)?Å. The crystal packing is stabilized by classical O-H?O and weak C-H?O hydrogen bonding.

| S-EPMC3120284 | biostudies-literature

Pyrimidine-4-carb-oxy-lic acid.

Project description:The crystal structure of the title compound, C5H4N2O2, is built of acid mol-ecules located on a mirror plane. They form sheets stacked along the b-axis direction. The mol-ecules inter-act via O-H?N hydrogen bonds, forming [001] chains, and weak van der Waals inter-actions.

| S-EPMC3685042 | biostudies-literature

3-Carb-oxy-methyl-1H-indole-4-carb-oxy-lic acid.

Project description:In the title compound, C(11)H(9)NO(4), the carboxyl group bonded to the six-membered ring lies close to the plane of the 1H-indole ring system [dihedral angle = 13.13?(9)°], whereas the carb-oxy-lic acid group linked to the five-membered ring by a methyl-ene bridge is close to perpendicular [78.85?(9)°]. In the crystal, O-H?O and N-H?O hydrogen bonds link the mol-ecules, generating (110) sheets.

| S-EPMC3254489 | biostudies-literature

(1H-Benzimidazole-5-carb-oxy-lic acid-κN)(1H-benzimidazole-6-carb-oxy-lic acid-κN)silver(I) perchlorate.

Project description:The reaction of 1H-benzimidazole-5-carb-oxy-lic acid with silver nitrate in the presence of perchloric acid under hydro-thermal conditions yielded the title complex, [Ag(C(8)H(6)N(2)O(2))(2)]ClO(4), which comprises of an [Ag(C(8)H(6)N(2)O(2))(2)] mononuclear cation and a perchlorate anion. The Ag(I) ion is coordinated by two N atoms from two different neutral 1H-benzimidazole-5-carb-oxy-lic acid ligands with an N-Ag-N bond angle of 163.21 (14)°, forming an [Ag(C(8)H(6)N(2)O(2))(2)] mononuclear cation. Although both ligands in the mononuclear cation are monodentate with one N atom coordinated to the metal ion, they are different: one is N(3) coordinated to the Ag (I) ion and the N(1) atom protonated, the other with the N(1) coordinated to the Ag (I) ion and the N(3) atom protonated (and thus formally a 1H-benzimidazole-6-carb-oxy-lic acid rather than a 1H-benzimidazole-5-carb-oxy-lic acid ligand). The planes of the two planar ligands are roughly perpendicular, making a dihedral angle of 84.97 (2)°. The packing of the ions is stablized by extensive O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds, and by remote Ag⋯O inter-actions [3.002 (3), 3.581 (5) and 3.674 (5) Å].

| S-EPMC3099977 | biostudies-literature

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