First Stereoselective Synthesis of 2-Deoxy-α-d-ribosyl-1-phosphate: Novel Application of Crystallization-Induced Asymmetric Transformation
摘要:
A first stereoselective synthesis of bis(cyclohexylamine) 2-deoxy-alpha-D-ribosyl-1-phosphate has been achieved. The synthesis features a key crystallization-induced asymmetric transformation (AT) to generate a desired alpha-anomer in 99% yield at a 98.8:1.2 ratio of alpha/beta.
Method for producing a pyrimidine nucleoside compound and a new pyrimidine nucleoside compound
申请人:Araki Tadashi
公开号:US20050074857A1
公开(公告)日:2005-04-07
A method for producing a pyrimidine nucleoside compound includes reacting a sugar phosphate and pyrimidine base derivative using an enzyme having cytosine nucleoside phosphorylase activity, the pyrimidine base derivative being represented by general formula (I):
(wherein R1 represents an amino group that may be replaced with an acyl group having an alkyl group of 1 to 3 carbon atoms or an alkyl group of 1 to 3 carbon atoms, an alkyl group of 1 to 3 carbon atoms, or a thiol group; R2 represents an amino group, a thiol group, a hydroxyl group, or a hydrogen atom; R3 represents an alkyl group of 1 to 3 carbon atoms that may be replaced with a hydroxyl group, an amino group, or a hydrogen atom; R4 represents a hydroxyl group or a hydrogen atom; when R1 is an amino group, when R2 is a hydroxyl group, and when R4 is a hydrogen atom; R3 is neither an alkyl group of 1 to 3 carbon atoms nor a hydrogen atom).
Enzymatic Synthesis of 2-Deoxyribose 1-Phosphate and Ribose 1 Phosphate and Subsequent Preparation of Nucleosides
作者:Irina V. Kulikova、Mikhail S. Drenichev、Pavel N. Solyev、Cyril S. Alexeev、Sergey N. Mikhailov
DOI:10.1002/ejoc.201901454
日期:2019.11.10
Rib‐p and dRib‐p starting from 7‐Me‐Guo and 7‐Me‐dGuo. Practically irreversible phosphorolysis of 7‐Me‐Guo and 7‐Me‐dGuo in the presence of PNP ensures the quantitative transformation of starting nucleosides to anomerically pure α‐Rib‐p and α‐dRib‐p. Rib‐p and dRib‐p are obtained with 74–96 % yields after isolation and purification.
First Stereoselective Synthesis of 2-Deoxy-α-<scp>d</scp>-ribosyl-1-phosphate: Novel Application of Crystallization-Induced Asymmetric Transformation
作者:Hironori Komatsu、Hirokazu Awano
DOI:10.1021/jo025793h
日期:2002.7.1
A first stereoselective synthesis of bis(cyclohexylamine) 2-deoxy-alpha-D-ribosyl-1-phosphate has been achieved. The synthesis features a key crystallization-induced asymmetric transformation (AT) to generate a desired alpha-anomer in 99% yield at a 98.8:1.2 ratio of alpha/beta.