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Methyl-1H-1,2,4-triazole-3-carboxylate

98%

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Empirical Formula (Hill Notation):
C4H5N3O2
CAS Number:
Molecular Weight:
127.10
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

98%

mp

196-199 °C (lit.)

SMILES string

COC(=O)c1nc[nH]n1

InChI

1S/C4H5N3O2/c1-9-4(8)3-5-2-6-7-3/h2H,1H3,(H,5,6,7)

InChI key

QMPFMODFBNEYJH-UHFFFAOYSA-N

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1 of 4

This Item
361011190683511781
1H-1,2,3-Triazolo[4,5-b]pyridine 98%

361011

1H-1,2,3-Triazolo[4,5-b]pyridine

2,6-Difluorophenyl isothiocyanate 98%

511781

2,6-Difluorophenyl isothiocyanate

mp

196-199 °C (lit.)

mp

208 °C (dec.) (lit.)

mp

130-133 °C (lit.)

mp

-

General description

Methyl-1H-1,2,4-triazole-3-carboxylate can be synthesized from 5-amino-1,2,4-triazole-3-carboxylic acid via esterification with methanol. It is utilized as precursor for preparing the nucleoside analogue, Ribavirin. The crystal structure of methyl-1H-1,2,4-triazole-3-carboxylate has been analyzed.

Application

Methyl-1H-1,2,4-triazole-3-carboxylate (1,2,4-Triazole-3-methylcarboxylate) may be used in the preparation of 1H-1,2,4-triazole-3-carbohydrazide.
It may also be used in the synthesis of the following nucleoside analogues:
  • 1-(2,2-dimethyl-6-trityloxymethyl-4,6a-dihydro-3aH-cyclopenta-[1,3]dioxol-4-yl)-1H-1,2,4-triazole-3-carboxylic acid methyl ester
  • methyl 4,6-O-benzylidene-2-(methyl 1H-1,2,4-triazol-1-yl-3-carboxylate)-2-deoxy-<SC>D</SC>-altrohexopyranoside
  • 1,5-anhydro-4,6-O-benzylidene-2-(methyl 1H-1,2,4-triazol-1-yl-3-carboxylate)-2-deoxy-<SC>D</SC>-altro-hexitol

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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Arthur Van Aerschot et al.
Antiviral chemistry & chemotherapy, 14(1), 23-30 (2003-06-07)
Current standard therapy for the treatment of chronic infections with hepatitis C virus consists of combination therapy with (pegylated) interferon-alpha and ribavirin. 1,5-Anhydrohexitol nucleoside analogues are constrained congeners known to mimic the ribonucleoside conformation. Within this series some analogues are
Methyl 1H-1,2,4-triazole-3-carboxylate.
Guo XH and Wang QX.
Acta Crystallographica Section E, Structure Reports Online, 61(10), o3217-o3218 (2005)
Dinuclear, Tetranuclear and Chain (MnII, CoII) Complexes of Multifunctional Hydrazone Ligands?Structural and Magnetic Studies.
Bettle PJ, et al.
European Journal of Inorganic Chemistry, 2011(32), 5036-5042 (2011)
Jong Hyun Cho et al.
Journal of medicinal chemistry, 49(3), 1140-1148 (2006-02-03)
A practical and convenient methodology for the synthesis of chiral cyclopentenol derivative (+)-12a has been developed as the key intermediate that was utilized for the synthesis of biologically active carbocyclic nucleosides. The selective protection of allylic hydroxyl group followed by

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