Stereochemistry of Benzylic Carbon Substitution Coupled with Ring Modification of 2-Nitrobenzyl Groups as Key Determinants for Fast-Cleaving Reversible Terminators
作者:Brian P. Stupi、Hong Li、Jinchun Wang、Weidong Wu、Sidney E. Morris、Vladislav A. Litosh、Jesse Muniz、Megan N. Hersh、Michael L. Metzker
DOI:10.1002/anie.201106516
日期:2012.2.13
reversible terminators have been developed, which upon exposure to UV light generate natural hydroxymethyl nucleotides (see scheme). The combination of a stereospecific (S)‐tert‐butyl group (R) at the benzylic carbon and a 5‐OMe group (R′) on the 2‐nitrobenzyl ring substantially increase the rate of photochemical cleavage. For 7‐deaza‐7‐hydroxymethyl‐2′‐deoxyguanosine, these modifications led to a rate increase
已经开发出一套完整的 2-硝基苄基修饰的可逆终止剂,它们在暴露于紫外线下时会产生天然的羟甲基核苷酸(见方案)。苄基碳上的立体特异性 ( S )-叔丁基 (R) 和 2-硝基苄基环上的 5-OMe 基团 (R') 的组合显着提高了光化学裂解的速率。对于 7-deaza-7-hydroxymethyl-2'-deoxyguanosine,这些修饰导致速率增加超过一个数量级。