Crystal Structures of 2-Phenyl-2H-1,2,3-Triazol-4-Carbaldehyde, an Active a-Glycosidase Inhibition Agent, and (1-Phenyl-1H-1,2,3-Triazol-4-yl)Methyl Benzoate and (2-(4-Fluorophenyl)-2H-1,2,3-Triazole-4-yl)Methanol, Two Moderately Active Compounds

Daniel Gonzaga, Fernando C. da Silva, Vitor F. Ferreira, James L. Wardell, Solange M. S. V. Wardell

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Abstract

The crystal structures of (1-phenyl-1H-1,2,3-triazol-4-yl)methyl benzoate, 1a, (2-(4-fluorophenyl)-2H-1,2,3-triazole-4-yl)methanol, 2a, and 2-phenyl-2H-1,2,3-triazol-4-carbaldehyde, 2b, are reported. Compounds 1a and 2a were recently reported to exhibit mild α-glycosidase inhibition activity, while compound 2b exhibited a much greater activity. Only small dihedral angles 6.52(4), 14.02(10) and 2.44(7)° are present between the triazolyl ring and the attached aryl rings in 1a, 2a and 2b, respectively. The relatively flat compounds 2a and 2b contrast with compound 1a, which is “V” shaped, with a dihedral angle between the near planar phenyltriazolyl-CH2 and phenyl-CO2CH2 moieties of 88.11(4)°. The intermolecular interactions in 1a are C–H···X (X = N or π(triazole) and π(triazole) ···π(phenyl): two different chains are formed, from (i) combinations of the C–H···N hydrogen bonds and (ii) combinations of the C–H···π and π···π interactions.. The intermolecular interactions in 2a are C–H···O and C–F···π(phenyl): the C–H···O interactions generate a sheet of molecules, containing a network of rings.·Classical O–H···O hydrogen bonds, and weaker C–H···π(triazolyl) and π(phenyl)···π(triazolyl) interactions are present in 2b: all three interactions together generate a chevron-type arrangement. Compound 1a crystallizes in the monoclinic space group P21 with a = 4.5661(5), b = 10.5573(14), c = 13.9694(19) Å, β = 90.594(6)° and Z = 2. Compound 2a crystallizes in the monoclinic space group P21 with a = 3.7175(7), b = 10.428(2), c = 10.689(3) Å, β = 90.521(6)° and Z = 2. Compound 2b crystallizes in the monoclinic space group P21/c with a = 11.4130(5), b = 4.80280(10), c = 15.5916(11) Å, β = 103.373(7)° and Z = 4.
Original languageEnglish
Pages (from-to)67-76
Number of pages10
JournalJournal of Chemical Crystallography
Volume46
Issue number2
Early online date16 Dec 2015
DOIs
Publication statusPublished - Feb 2016

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Triazoles
Glycoside Hydrolases
Methanol
methyl alcohol
Crystal structure
Dihedral angle
crystal structure
Hydrogen
Hydrogen bonds
interactions
dihedral angle
rings
methylidyne
hydrogen bonds
Molecules
methyl benzoate
molecules

Keywords

  • 1H-1,2,3-triazole
  • 2H-1,2,3-triazole
  • α-glycosidase inhibition
  • Hydrogen bonds, π···π interactions

Cite this

@article{bcc60d4328584cc6a8d47eaa74955568,
title = "Crystal Structures of 2-Phenyl-2H-1,2,3-Triazol-4-Carbaldehyde, an Active a-Glycosidase Inhibition Agent, and (1-Phenyl-1H-1,2,3-Triazol-4-yl)Methyl Benzoate and (2-(4-Fluorophenyl)-2H-1,2,3-Triazole-4-yl)Methanol, Two Moderately Active Compounds",
abstract = "The crystal structures of (1-phenyl-1H-1,2,3-triazol-4-yl)methyl benzoate, 1a, (2-(4-fluorophenyl)-2H-1,2,3-triazole-4-yl)methanol, 2a, and 2-phenyl-2H-1,2,3-triazol-4-carbaldehyde, 2b, are reported. Compounds 1a and 2a were recently reported to exhibit mild α-glycosidase inhibition activity, while compound 2b exhibited a much greater activity. Only small dihedral angles 6.52(4), 14.02(10) and 2.44(7)° are present between the triazolyl ring and the attached aryl rings in 1a, 2a and 2b, respectively. The relatively flat compounds 2a and 2b contrast with compound 1a, which is “V” shaped, with a dihedral angle between the near planar phenyltriazolyl-CH2 and phenyl-CO2CH2 moieties of 88.11(4)°. The intermolecular interactions in 1a are C–H···X (X = N or π(triazole) and π(triazole) ···π(phenyl): two different chains are formed, from (i) combinations of the C–H···N hydrogen bonds and (ii) combinations of the C–H···π and π···π interactions.. The intermolecular interactions in 2a are C–H···O and C–F···π(phenyl): the C–H···O interactions generate a sheet of molecules, containing a network of rings.·Classical O–H···O hydrogen bonds, and weaker C–H···π(triazolyl) and π(phenyl)···π(triazolyl) interactions are present in 2b: all three interactions together generate a chevron-type arrangement. Compound 1a crystallizes in the monoclinic space group P21 with a = 4.5661(5), b = 10.5573(14), c = 13.9694(19) {\AA}, β = 90.594(6)° and Z = 2. Compound 2a crystallizes in the monoclinic space group P21 with a = 3.7175(7), b = 10.428(2), c = 10.689(3) {\AA}, β = 90.521(6)° and Z = 2. Compound 2b crystallizes in the monoclinic space group P21/c with a = 11.4130(5), b = 4.80280(10), c = 15.5916(11) {\AA}, β = 103.373(7)° and Z = 4.",
keywords = "1H-1,2,3-triazole, 2H-1,2,3-triazole, α-glycosidase inhibition, Hydrogen bonds, π···π interactions",
author = "Daniel Gonzaga and {da Silva}, {Fernando C.} and Ferreira, {Vitor F.} and Wardell, {James L.} and Wardell, {Solange M. S. V.}",
note = "The use of the NCS crystallographic service at Southampton and the valuable assistance of the staff there are gratefully acknowledged. JLW thanks FAPERJ, Brazil for support.",
year = "2016",
month = "2",
doi = "10.1007/s10870-015-0629-4",
language = "English",
volume = "46",
pages = "67--76",
journal = "Journal of Chemical Crystallography",
issn = "1074-1542",
publisher = "Springer New York",
number = "2",

}

TY - JOUR

T1 - Crystal Structures of 2-Phenyl-2H-1,2,3-Triazol-4-Carbaldehyde, an Active a-Glycosidase Inhibition Agent, and (1-Phenyl-1H-1,2,3-Triazol-4-yl)Methyl Benzoate and (2-(4-Fluorophenyl)-2H-1,2,3-Triazole-4-yl)Methanol, Two Moderately Active Compounds

AU - Gonzaga, Daniel

AU - da Silva, Fernando C.

AU - Ferreira, Vitor F.

AU - Wardell, James L.

AU - Wardell, Solange M. S. V.

N1 - The use of the NCS crystallographic service at Southampton and the valuable assistance of the staff there are gratefully acknowledged. JLW thanks FAPERJ, Brazil for support.

PY - 2016/2

Y1 - 2016/2

N2 - The crystal structures of (1-phenyl-1H-1,2,3-triazol-4-yl)methyl benzoate, 1a, (2-(4-fluorophenyl)-2H-1,2,3-triazole-4-yl)methanol, 2a, and 2-phenyl-2H-1,2,3-triazol-4-carbaldehyde, 2b, are reported. Compounds 1a and 2a were recently reported to exhibit mild α-glycosidase inhibition activity, while compound 2b exhibited a much greater activity. Only small dihedral angles 6.52(4), 14.02(10) and 2.44(7)° are present between the triazolyl ring and the attached aryl rings in 1a, 2a and 2b, respectively. The relatively flat compounds 2a and 2b contrast with compound 1a, which is “V” shaped, with a dihedral angle between the near planar phenyltriazolyl-CH2 and phenyl-CO2CH2 moieties of 88.11(4)°. The intermolecular interactions in 1a are C–H···X (X = N or π(triazole) and π(triazole) ···π(phenyl): two different chains are formed, from (i) combinations of the C–H···N hydrogen bonds and (ii) combinations of the C–H···π and π···π interactions.. The intermolecular interactions in 2a are C–H···O and C–F···π(phenyl): the C–H···O interactions generate a sheet of molecules, containing a network of rings.·Classical O–H···O hydrogen bonds, and weaker C–H···π(triazolyl) and π(phenyl)···π(triazolyl) interactions are present in 2b: all three interactions together generate a chevron-type arrangement. Compound 1a crystallizes in the monoclinic space group P21 with a = 4.5661(5), b = 10.5573(14), c = 13.9694(19) Å, β = 90.594(6)° and Z = 2. Compound 2a crystallizes in the monoclinic space group P21 with a = 3.7175(7), b = 10.428(2), c = 10.689(3) Å, β = 90.521(6)° and Z = 2. Compound 2b crystallizes in the monoclinic space group P21/c with a = 11.4130(5), b = 4.80280(10), c = 15.5916(11) Å, β = 103.373(7)° and Z = 4.

AB - The crystal structures of (1-phenyl-1H-1,2,3-triazol-4-yl)methyl benzoate, 1a, (2-(4-fluorophenyl)-2H-1,2,3-triazole-4-yl)methanol, 2a, and 2-phenyl-2H-1,2,3-triazol-4-carbaldehyde, 2b, are reported. Compounds 1a and 2a were recently reported to exhibit mild α-glycosidase inhibition activity, while compound 2b exhibited a much greater activity. Only small dihedral angles 6.52(4), 14.02(10) and 2.44(7)° are present between the triazolyl ring and the attached aryl rings in 1a, 2a and 2b, respectively. The relatively flat compounds 2a and 2b contrast with compound 1a, which is “V” shaped, with a dihedral angle between the near planar phenyltriazolyl-CH2 and phenyl-CO2CH2 moieties of 88.11(4)°. The intermolecular interactions in 1a are C–H···X (X = N or π(triazole) and π(triazole) ···π(phenyl): two different chains are formed, from (i) combinations of the C–H···N hydrogen bonds and (ii) combinations of the C–H···π and π···π interactions.. The intermolecular interactions in 2a are C–H···O and C–F···π(phenyl): the C–H···O interactions generate a sheet of molecules, containing a network of rings.·Classical O–H···O hydrogen bonds, and weaker C–H···π(triazolyl) and π(phenyl)···π(triazolyl) interactions are present in 2b: all three interactions together generate a chevron-type arrangement. Compound 1a crystallizes in the monoclinic space group P21 with a = 4.5661(5), b = 10.5573(14), c = 13.9694(19) Å, β = 90.594(6)° and Z = 2. Compound 2a crystallizes in the monoclinic space group P21 with a = 3.7175(7), b = 10.428(2), c = 10.689(3) Å, β = 90.521(6)° and Z = 2. Compound 2b crystallizes in the monoclinic space group P21/c with a = 11.4130(5), b = 4.80280(10), c = 15.5916(11) Å, β = 103.373(7)° and Z = 4.

KW - 1H-1,2,3-triazole

KW - 2H-1,2,3-triazole

KW - α-glycosidase inhibition

KW - Hydrogen bonds, π···π interactions

U2 - 10.1007/s10870-015-0629-4

DO - 10.1007/s10870-015-0629-4

M3 - Article

VL - 46

SP - 67

EP - 76

JO - Journal of Chemical Crystallography

JF - Journal of Chemical Crystallography

SN - 1074-1542

IS - 2

ER -