Compound Q&A
How is 4-Amino-5-fluoro-1-[(2S,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone (CAS: 145416-34-8) typically synthesized?
Answer
![4-Amino-5-fluoro-1-[(2S,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone](https://static.chemtradehub.com/structs/145/145416-34-8-2bb2.webp "4-Amino-5-fluoro-1-[(2S,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone")
4-Amino-5-fluoro-1-[(2S,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone can be synthesized via a multi-step process involving the protection of a thiol group, followed by ring closure, and subsequent deprotection. Commonly, this involves the use of thioacetals and controlled acid/base conditions. The overall yield is typically around 60-70%, with good selectivity for the desired product.
About
CAS No
145416-34-8
English Name
4-Amino-5-fluoro-1-[(2S,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone
Molecular Formula
C8H10FN3O3S
Molecular Weight
247.25 g/mol
SMILES
C1C(OC(S1)CO)N2C=C(C(=NC2=O)N)F
InChIKey
XQSPYNMVSIKCOC-WDSKDSINSA-N
Last Updated: 2026-03-16 21:46
![4-Amino-5-fluoro-1-[(2S,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone — ShenZhenZhenJiangShengWuJiShu Co Ltd](https://static.chemtradehub.com/suppliers/67cec9142b2de6e8e95a51e7/67cec9142b2de6e8e95a51e7-logo.webp){kind=logo}
![4-Amino-5-fluoro-1-[(2S,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone — ShenZhenAiTaHuaXue Co Ltd](https://static.chemtradehub.com/suppliers/67ced0fb2b2de6e8e95a67fa/67ced0fb2b2de6e8e95a67fa-logo.webp){kind=logo}
![4-Amino-5-fluoro-1-[(2S,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]-2(1H)-pyrimidinone — Hubei Yangxin Pharmaceutical Technology Co., Ltd.](https://static.chemtradehub.com/suppliers/67cded3957537e5c8069af88/67cded3957537e5c8069af88-logo.webp){kind=logo}