Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Crystal structure of ethyl 2-phenyl-4-(prop-2-yn-1-yl-oxy)-5,6,7,8-tetra-hydro-pyrido[4',3':4,5]thieno[2,3-d]pyrimidine-7-carboxyl-ate.

ABSTRACT: In the title compound, C21H19N3O3S, the 5,6,7,8-tetra-hydro-pyridine ring adopts a half-chair conformation. The fused-thieno[2,3-d]pyrimidine ring system is essentially planar (r.m.s. deviation = 0.001?Å) and forms a dihedral angle of 2.66?(6)° with the attached phenyl ring. The three-dimensional crystal packing is stabilized by C-H?O and C-H?N hydrogen bonds and C-H?? inter-actions.

SUBMITTER: Akkurt M

PROVIDER: S-EPMC4645036 | biostudies-literature | 2015 Nov

REPOSITORIES: biostudies-literature

ACCESS DATA

Json Xml

Publications

Crystal structure of ethyl 2-phenyl-4-(prop-2-yn-1-yl-oxy)-5,6,7,8-tetra-hydro-pyrido[4',3':4,5]thieno[2,3-d]pyrimidine-7-carboxyl-ate.

Akkurt Mehmet M Smolenski Victoria A VA Mohamed Shaaban K SK Jasinski Jerry P JP Ahmed Essam K EK Albayati Mustafa R MR

Acta crystallographica. Section E, Crystallographic communications 20151010 Pt 11

In the title compound, C21H19N3O3S, the 5,6,7,8-tetra-hydro-pyridine ring adopts a half-chair conformation. The fused-thieno[2,3-d]pyrimidine ring system is essentially planar (r.m.s. deviation = 0.001 Å) and forms a dihedral angle of 2.66 (6)° with the attached phenyl ring. The three-dimensional crystal packing is stabilized by C-H⋯O and C-H⋯N hydrogen bonds and C-H⋯π inter-actions. ...[more]

PMID: 26594553

Similar Datasets

6-Benzyl 4-ethyl 2-chloro-5,6,7,8-tetra-hydro-pyrido[4,3-d]pyrimidine-4,6-di-carboxyl-ate.

Project description:In the title compound, C(18)H(18)ClN(3)O(4), the dihedral angle between the pyrimidine ring and the N-bonded ester grouping is 56.27?(7)° and the dihedral angle between the aromatic rings is 11.23?(7)°.

| S-EPMC3200750 | biostudies-literature

7-Benzyl-3-(4-fluoro-phen-yl)-2-propyl-amino-5,6,7,8-tetra-hydro-pyrido[4',3':4,5]thieno[2,3-d]pyrimidin-4(3H)-one.

Project description:In the title compound, C(25)H(25)FN(4)OS, the thienopyrimidine fused-ring system is close to planar (r.m.s. deviation = 0.0089?Å), with a maximum deviation of 0.0261?(17)?Å for the N atom adjacent to the benzene ring. This thienopyrimidine fused-ring system forms dihedral angles of 64.73?(3) and 81.56?(5)° with the adjacent benzyl and fluoro-phenyl rings, respectively. Inter-molecular N-H?F and C-H?F hydrogen bonding, as well as C-F?? inter-actions [F?centroid = 3.449?(3)?Å; C-F?centroid = 91.87?(15)°], help to stabilize the crystal structure.

| S-EPMC3344049 | biostudies-literature

7-Benzyl-2-[(cyclo-propyl-meth-yl)amino]-3-phenyl-5,6,7,8-tetra-hydro-pyrido[4',3':4,5]thieno[2,3-d]pyrimidin-4(3H)-one.

Project description:There are two independent mol-ecules in the asymmetric unit of the title compound, C(26)H(26)N(4)OS. In each mol-ecule, the thienopyrimidine fused-ring system is essentially planar with a maximum deviation of 0.0409?(18) for the N atom. In one mol-ecule, this ring system forms diherdral angles of 84.8?(1) and 67.6?(1)° with the adjacent phenyl and benzyl rings, respectively, while the corresponding angles in the other mol-ecule are 77.9?(1) and 66.5?(1)°.

| S-EPMC3213622 | biostudies-literature

2,4-Dioxo-1-(prop-2-yn-yl)-1,2,3,4-tetra-hydro-pyrimidine-5-carbaldehyde.

Project description:In the crystal structure of the title compound, C(8)H(6)N(2)O(3), the mol-ecules are linked by a pairs of inter-molecular N-H?O hydrogen bonds, forming inversion dimers. The aldehyde group is in the same plane as the pyrimidine ring [with a maximum deviation of 0.083?(2)?Å for the O atom), and the linear propargyl group [C-C-C = 178.99?(19)°] makes a dihedral angle of 74.36?(13)° with the ring.

| S-EPMC3200754 | biostudies-literature

Methyl 3,5,5,6,8,8-hexa-methyl-5,6,7,8-tetra-hydro-naphthalene-2-carboxyl-ate (AHTN-COOMe).

Project description:Crystals of the title compound, C(18)H(26)O(2), were grown from ethyl acetate. Due to the racemic precursor, the title compound is also obtained as a racemate. Disorder was observed during structure refinement, originating from two possible half-chair conformations of the non-aromatic ring. The disorder was refined by introducing split positions in the cyclo-hexane ring regarding the two possible R and S-enantiomers at the chiral CH group [ratio 0.744 (3):0.256 (3)]. The crystal structure features pairs of inversion-related molecules connected by pairs of non-classical C-H⋯O hydrogen bonds.

| S-EPMC3051644 | biostudies-literature

7-Benzyl-3-(4-fluoro-phen-yl)-2-(pyrrol-idin-1-yl)-5,6,7,8-tetra-hydro-pyrido[4',3':4,5]thieno[2,3-d]pyrimidin-4(3H)-one.

Project description:In the title compound, C(26)H(25)FN(4)OS, the thienopyrimidine fused-ring system is close to planar (r.m.s. deviation = 0.066?Å), with a maximum deviation of 0.1243?(17)?Å for the N atom adjacent to the carbonyl group. This ring system forms dihedral angles of 67.5?(1) and 88.9?(1) ° with the adjacent six-membered rings. Inter-molecular C-H?O hydrogen bonding and C-H?? inter-actions help to stabilize the crystal structure.

| S-EPMC3200784 | biostudies-literature

Ethyl 6-methyl-3-(2-methyl-prop-1-en-yl)-2-oxo-4-phenyl-1,2,3,4-tetra-hydro-pyrimidine-5-carboxyl-ate.

Project description:In the mol-ecule of the title compound, C(18)H(22)N(2)O(3), the dihydro-pyrimidinone ring adopts an envelope conformation. The dihedral angle between the phenyl ring and the mean plane through the enamine fragment is 86.04?(7)°. The mol-ecular conformation is stabilized by an intra-molecular C-H?O hydrogen bond. In the crystal, inter-molecular N-H?O hydrogen bonds link pairs of mol-ecules into centrosymmetric dimers.

| S-EPMC3247395 | biostudies-literature

7-Benzyl-3-(4-chloro-phen-yl)-2-isobutyl-amino-5,6,7,8-tetra-hydro-pyrido[4',3':4,5]thieno[2,3-d]pyrimidin-4(3H)-one.

Project description:In the title compound, C(26)H(27)ClN(4)OS, the thienopyrimidine fused-ring system is close to coplanar (r.m.s. deviation = 0.0089?Å), with a maximum deviation of 0.0283?(17)?Å for the N atom adjacent to the benzene ring. This ring system forms dihedral angles of 83.51?(3) and 88.20?(5)° with the adjacent benzyl and phenyl rings, respectively. In the crystal, N-H?Cl inter-actions and C-H?O hydrogen bonds are observed.

| S-EPMC3297883 | biostudies-other

Ethyl 2-amino-6-benzyl-4,5,6,7-tetra-hydro-thieno[2,3-c]pyridine-3-carboxyl-ate.

Project description:In the title compound, C(17)H(20)N(2)O(2)S, the tetra-hydro-pyridine ring adopts an envelope conformation with the N atom at the flap position; the phenyl ring makes a dihedral angle of 81.06?(10)° with the thio-phene ring. The amino group links with the carbonyl O atom via intra-molecular N-H?O hydrogen bonding, forming a six-membered ring. In the crystal, inter-molecular N-H?O hydrogen bonds link the mol-ecules into infinite chains running along the b axis.

| S-EPMC3050265 | biostudies-literature

Ethyl 6-methyl-2-oxo-4-phenyl-1,2,3,4-tetra-hydro-pyrimidine-5-carboxyl-ate.

Project description:The title compound, C(14)H(16)N(2)O(3), belongs to a group of esters of 2-oxo- and 1,2,3,4-tetra-hydro-pyrimidine-5-carboxylic acids, which exhibit a wide spectrum of biological activities. The dihydro-pyrimidine ring adopts a screw-boat conformation. The crystal packing is stabilized by strong N-H?O and weak C-H?O inter-molecular hydrogen bonds. An intra-molecular C-H?O hydrogen bond is also present.

| S-EPMC2960668 | biostudies-literature

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data