Synthesis of Remdesivir Derivate as a Generation of Anti-COVID-19 Drugs Through Acetylation Reactions

Document Type : Original Articles

Authors

1 Faculty of Pharmacy, Hasanuddin University, makassar, Indonesia

2 Faculty of Pharmacy, Hasanuddin University, Makassar, Indonesia

10.32592/ARI.2023.78.6.1753

Abstract

Remdesivir, a competitive inhibitor of viral RNA-dependent RNA polymerase, is the drug of choice for anti-COVID-19 treatment. However, the instability of these substances in plasma raises doubts about their therapeutic potency. Additionally, SARS-CoV-2-infected cells may exhibit a variety of antiviral behaviors due to intricate activation pathways. Therefore, this study aimed to develop a synthesis for the remdesivir derivative.
The remdesivir derivative was synthesized using acetyl chloride as a reagent in a ratio of 1:3 in dichloromethane and tetrahydrofuran solvent at 30°C for 6 h. Thin-layer chromatography and spectrophotometers (1H NMR and 13C NMR) were used to identify the produced molecule, which was a brownish-yellow crystalline powder. The results of the synthesis yielded 0.8 gr (77.34%), and the Rf value of the remdesivir derivate was 0.54. The characterization with 1H NMR at δ2.5 ppm (3H, s) indicated the presence of a proton in the H-C-C=O structure caused by the substitution of the acetyl group in the remdesivir structure. The 13C NMR data indicated the presence of aromatic carbons, alkenes, C≡N, and carbon bonds with electronegative O. This remdesivir derivate chemical can be a potential candidate for an anti-COVID-19 drug that has more potency because it has substitutions of acetyl groups at positions 2' and 3' in the structure of remdesivir.

Keywords


References
1. Liao SH, Hung CC, Chen CN, Yen JY, Hsu CY, Yen
AMF, dkk. Assessing efficacy of antiviral therapy for
COVID-19 patients: A case study on remdesivir with
bayesian synthesis design and multistate analysis.
Journal of the Formosan Medical Association. Juni
2021;120:S77–85.
2. Kumar Palli K, Ghosh P, Krishna Avula S, Sridhara
Shanmukha Rao B, Patil AD, Ghosh S, dkk. Total
synthesis of remdesivir. Tetrahedron Lett. 5 Januari
2022;88:153590.
3. Grein J, Ohmagari N, Shin D, Diaz G, Asperges E,
Castagna A, dkk. Compassionate Use of Remdesivir for
Patients with Severe Covid-19. N Engl J Med. 10 April
2020;NEJMoa2007016.
4. Wang M, Cao R, Zhang L, Yang X, Liu J, Xu M, dkk.
Remdesivir and chloroquine effectively inhibit the
recently emerged novel coronavirus (2019-nCoV) in
vitro. Cell Res. Maret 2020;30(3):269–71.
5. Schooley RT, Carlin AF, Beadle JR, Valiaeva N, Zhang
XQ, Clark AE, dkk. Rethinking Remdesivir: Synthesis,
Antiviral Activity and Pharmacokinetics of Oral Lipid
Prodrugs. bioRxiv. 7 Juni 2021;2020.08.26.269159.
6. El-Sayed NS, Jureka AS, Edwards MR, Lohan S,
Williams CG, Keiser PT, dkk. Synthesis and antiviral
activity of fatty acyl conjugates of remdesivir against
severe acute respiratory syndrome coronavirus 2 and
Ebola virus. Eur J Med Chem. 15 Desember
2021;226:113862.
7. Pranowo HD. The role of computational chemistry in
the design of drug molecules. Yogyakarta: Gadja Mada
University Press; 2009.
8. Sitorus M. Physical Organic Chemistry. Yogyakarta:
Graha Ilmu; 2020.
9. Stalinskaya AL, Martynenko NV, Shulgau ZT, Shustov
AV, Keyer VV, Kulakov IV. Synthesis and Antiviral
Properties against SARS-CoV-2 of Epoxybenzooxocino
[4,3-b]Pyridine Derivatives. Molecules. 9 Juni
2022;27(12):3701.
10. Frediansyah A, Nainu F, Dhama K, Mudatsir M,
Harapan H. Remdesivir and its antiviral activity against
COVID-19: A systematic review. Clin Epidemiol Glob
Health. 2021;9:123–7.
11. Adriani N. Reaction Mechanism Of Nucleophilic Sn1
And Sn2 Substitution With Organic Halogen
Compounds. Maritim Raja Ali Haji University; 2021.
12.Bele A, Khale A. An overview on thin layer
chromatography. Int J Pharm Pharm Sci. 1 Januari
2011;2.
13. Sastrohamidjojo H. Spectroscopy Basics. Yogyakarta:
Gadjah Mada University Press; 2019.