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N-(2-Amino-4,6-dihydroxypyrimidin-5-yl)acetamide dihydrate.

ABSTRACT: The title compound, C(6)H(8)N(4)O(3)·2H(2)O, which crystallized as a dihydrate, has two almost planar segments viz. the pyrimidine ring and the C-N-C(=O)-C group [maxmum deviations of 0.020 (2) and 0.014 (2) Å, respectively], with a dihedral angle of 87.45°. In the crystal, the components are linked by O-H⋯O and N-H⋯O hydrogen bonds.

SUBMITTER: Zhang XM

PROVIDER: S-EPMC3200964 | biostudies-literature |

REPOSITORIES: biostudies-literature

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2-[(4,6-Di-amino-pyrimidin-2-yl)sulfan-yl]-N-(2-methyl-phen-yl)acetamide.

Project description:In the title compound, C13H15NOS, the plane of the pyrimidine ring makes a dihedral angle of 54.73?(9)° with that of the o-tolyl ring. The mol-ecule adopts an extended conformation, which is evident from the C-C(=O)-N-Car (ar = aromatic) torsion angle of 178.42?(15)°. In the crystal, mol-ecules are linked via pairs of N-H?N hydrogen bonds, forming inversion dimers with an R (2) 2(8) ring motif. The dimers are linked by N-H?O and C-H?O hydrogen bonds, with the O atom accepting three such interactions, forming sheets parallel to (100).

| S-EPMC4158502 | biostudies-literature

Crystal structures and Hirshfeld surface analyses of 2-[(4,6-di-amino-pyrimidin-2-yl)sulfan-yl]-N-(pyridin-2-yl)acetamide and 2-[(4,6-di-amino-pyrimidin-2-yl)sulfan-yl]-N-(pyrazin-2-yl)acetamide.

Project description:In the title compounds, C11H12N6OS (I) and C10H11N7OS (II), the di-amino-pyrimidine ring makes dihedral angles of 71.10?(9)° with the pyridine ring in (I) and 62.93?(15)° with the pyrazine ring in (II). The ethanamine group, -CH2-C(=O)-NH- lies in the plane of the pyridine and pyrazine rings in compounds (I) and (II), respectively. In both compounds, there is an intra-molecular N-H?N hydrogen bond forming an S(7) ring motif and a short C-H?O inter-action forming an S(6) loop. In the crystals of both compounds, mol-ecules are linked by pairs of N-H?N hydrogen bonds, forming inversion dimers with R22(8) ring motifs. In (I), the dimers are linked by N-H?O and N-H?N hydrogen bonds, forming layers parallel to (1[Formula: see text] [Formula: see text]). The layers are linked by offset ?-? inter-actions [inter-centroid distance = 3.777?(1)?Å], forming a three-dimensional supra-molecular structure. In (II), the dimers are linked by N-H?O, N-H?N and C-H?O hydrogen bonds, also forming a three-dimensional supra-molecular structure.

| S-EPMC5947495 | biostudies-literature

Crystal structures of 2-[(4,6-di-amino-pyrimidin-2-yl)sulfan-yl]-N-(naphthalen-1-yl)acetamide and 2-[(4,6-di-amino-pyrimidin-2-yl)sulfan-yl]-N-(4-fluoro-phen-yl)acetamide.

Project description:The title compounds, C16H15N5OS, (I), and C12H12FN5OS, (II), are [(di-amino-pyrimidine)-sulfan-yl]acetamide derivatives. In (I), the pyrimidine ring is inclined to the naphthalene ring system by 55.5 (1)°, while in (II), the pyrimidine ring is inclined to the benzene ring by 58.93 (8)°. In (II), there is an intra-molecular N-H⋯N hydrogen bond and a short C-H⋯O contact. In the crystals of (I) and (II), mol-ecules are linked by pairs of N-H⋯N hydrogen bonds, forming inversion dimers with R22(8) ring motifs. In the crystal of (I), the dimers are linked by bifurcated N-H⋯(O,O) and C-H⋯O hydrogen bonds, forming layers parallel to (100). In the crystal of (II), the dimers are linked by N-H⋯O hydrogen bonds, also forming layers parallel to (100). The layers are linked by C-H⋯F hydrogen bonds, forming a three-dimensional architecture.

| S-EPMC5290587 | biostudies-literature

Crystal structures of N-(4-chloro-phen-yl)-2-[(4,6-di-amino-pyrimidin-2-yl)sulfan-yl]acetamide and N-(3-chloro-phen-yl)-2-[(4,6-di-amino-pyrimidin-2-yl)sulfan-yl]acetamide.

Project description:The title compounds, C12H12ClN5OS, (I), and C12H12ClN5OS, (II), are 2-[(di-amino-pyrimidin-2-yl)sulfan-yl]acetamides. Compound (II), crystallizes with two independent mol-ecules (A and B) in the asymmetric unit. In each of the mol-ecules, in both (I) and (II), an intra-molecular N-H⋯N hydrogen bond forms an S(7) ring motif. The pyrimidine ring is inclined to the benzene ring by 42.25 (14)° in (I), and by 59.70 (16) and 62.18 (15)° in mol-ecules A and B, respectively, of compound (II). In the crystal of (I), mol-ecules are linked by pairs of N-H⋯N hydrogen bonds, forming inversion dimers with an R22(8) ring motif. The dimers are linked via bifurcated N-H⋯O and C-H⋯O hydrogen bonds, forming corrugated layers parallel to the ac plane. In the crystal of (II), the A mol-ecules are linked through N-H⋯O and N-H⋯Cl hydrogen bonds, forming layers parallel to (100). The B mol-ecules are also linked by N-H⋯O and N-H⋯Cl hydrogen bonds, also forming layers parallel to (100). The parallel layers of A and B mol-ecules are linked via N-H⋯N hydrogen bonds, forming a three-dimensional structure.

| S-EPMC5382600 | biostudies-literature

Crystal structures of 2-[(4,6-di-amino-pyrimidin-2-yl)sulfan-yl]-N-(2,4-di-methyl-phen-yl)acetamide and 2-[(4,6-di-amino-pyrimidin-2-yl)sulfan-yl]-N-(3-meth-oxy-phen-yl)acetamide.

Project description:In the title compounds, C14H17N5OS (I) and C13H15N5O2S (II), the dihedral angle between the pyrimidine and benzene rings is 58.64 (8)° in (I) and 78.33 (9)° in (II). In both compounds, there is an intra-molecular C-H⋯O hydrogen bond, and in (II) there is also an intra-molecular N-H⋯N hydrogen bond present. In the crystals of both compounds, a pair of N-H⋯N hydrogen bonds links the individual mol-ecules to form inversion dimers with R22(8) ring motifs. In (I), the dimers are linked by N-H⋯O and C-H⋯O hydrogen bonds, enclosing R21(14), R21(11) and R21(7) ring motifs, forming layers parallel to the (100) plane. There is also an N-H⋯π inter-action present within the layer. In (II), the inversion dimers are linked by N-H⋯O hydrogen bonds enclosing an R44(18) ring motif. The presence of N-H⋯O and C-H⋯O hydrogen bonds generate an R21(6) ring motif. The combination of these various hydrogen bonds results in the formation of layers parallel to the (1-11) plane.

| S-EPMC5499277 | biostudies-literature

N-{2-[2-(2-Cyano-4,6-di-nitro-phen-yl)diazen-yl]-5-(diethyl-amino)phen-yl}acetamide.

Project description:The title compound, C(19)H(19)N(7)O(5), exhibits substitutional disorder of the ortho-nitro and cyano groups, with site-occupancy factors of 0.686?(7):0.314?(7). The two aromatic rings are essentially coplanar, with a dihedral angle of 6.6?(5)°. In the diethyl-amino group, the two ethyl groups lie on the same side of the amino-benzene plane. An intra-molecular N-H?N hydrogen bond links the amino and diazenyl groups.

| S-EPMC3470364 | biostudies-literature

2-Amino-4,6-dimethyl-pyridinium chloride dihydrate.

Project description:In the title hydrated mol-ecular salt, C(7)H(11)N(2) (+)·Cl(-)·2H(2)O, the pyridine N atom of the 2-amino-4,6-dimethyl-pyridine mol-ecule is protonated. The cation is essentially planar, with a maximum deviation of 0.006?(2)?Å. In the crystal, the components are linked by N-H?O, N-H?Cl and O-H?Cl hydrogen bonds, thereby forming sheets lying parallel to (100). The crystal structure is further stabilized by aromatic ?-? stacking inter-actions between the pyridinium rings [centroid-centroid distance = 3.4789?(9)?Å].

| S-EPMC3201217 | biostudies-literature

Crystal structures of 2-[(4,6-di-amino-pyrimidin-2-yl)sulfan-yl]-N-(3-nitro-phen-yl)acetamide monohydrate and N-(2-chloro-phen-yl)-2-[(4,6-di-amino-pyrimidin-2-yl)sulfan-yl]acetamide.

Project description:The title compounds, C12H12N6O3S·H2O, (I), and C12H12ClN5OS, (II), are 2-[(4,6-di-amino-pyrimidin-2-yl)sulfan-yl]acetamides. Compound (I) crystallized as a monohydrate. In both compounds, the mol-ecules have a folded conformation, with the pyrimidine ring being inclined to the benzene ring by 56.18?(6)° in (I) and by 67.84?(6)° in (II). In both mol-ecules, there is an intra-molecular N-H?N hydrogen bond stabilizing the folded conformation. In (I), there is also a C-H?O intra-molecular short contact, and in (II) an intra-molecular N-H?Cl hydrogen bond is present. In the crystal of (I), mol-ecules are linked by a series of N-H?O, O-H?O and O-H?N hydrogen bonds, forming undulating sheets parallel to the (100). The sheets are linked via an N-H?Owater hydrogen bond, forming a three-dimensional network. In the crystal of (II), mol-ecules are linked by a series of N-H?O, N-H?N and C-H?O hydrogen bonds, forming slabs parallel to (001).

| S-EPMC4971865 | biostudies-other

2-Amino-4,6-dimethyl-pyrimidinium 3,5-dinitro-benzoate dihydrate.

Project description:In the title compound, C(6)H(10)N(3) (+)·C(7)H(3)N(2)O(6) (-)·2H(2)O, the amino-pyrimidine mol-ecule is protonated at one of the pyrimidine N atoms. The carboxyl-ate group of the 3,5-dinitro-benzoate anion inter-acts with the protonated pyrimidine N atom and the 2-amino group through a pair of N-H⋯O hydrogen bonds, forming an R(2) (2)(8) motif. Two inversion-related pyrimidine rings are linked via a pair of N-H⋯N hydrogen bonds, also forming an R(2) (2)(8) ring motif.

| S-EPMC2960285 | biostudies-literature

2-(4,6-Dimethyl-pyrimidin-2-ylsulfan-yl)-N-phenyl-acetamide.

Project description:In the title compound, C(14)H(15)N(3)OS, the phenyl ring is almost perpendicular to the dimethyl-pyrimidine group, with a dihedral angle of 88.1 (3)°. The Csp(2)-S bond of 1.759 (3) Å is significantly shorter than the Csp(3)-S bond of 1.795 (3) Å due to the p-π conjugation.

| S-EPMC2960928 | biostudies-literature

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