Extending both ways: A method for DNA‐templated synthesis on solid support is described. Controlled, stepwise chain extension was demonstrated both in the direction favored by nature (3′‐extension; see scheme) and in the direction typical for conventional DNA synthesizers (5′‐extension).
High Fidelity Enzyme‐Free Primer Extension with an Ethynylpyridone Thymidine Analog
作者:Jianyang Han、Eric Kervio、Clemens Richert
DOI:10.1002/chem.202102996
日期:2021.11.17
Strongly binding analog: When thymidine is replaced with ethynylmethylpyridone, enzyme-free genetic copying occurs faster and with higher fidelity.
强结合类似物:当胸苷被乙炔基甲基吡啶酮取代时,无酶基因复制发生得更快且保真度更高。
Azidomethyl 4-Nitrophenyl Carbonate - A Reagent for the One-Step Introduction of the Azidomethyloxycarbonyl (Azoc) Protecting Group
作者:Clemens Richert、Andreas Kaiser
DOI:10.1055/s-0030-1258049
日期:2010.9
Presented here is the three-step synthesis of azidomethyl 4-nitrophenyl carbonate in 58% overall yield. This carbonate allows for the high-yielding (³90%) introduction of the phosphine-labile azidomethyloxycarbonyl (Azoc) protecting group in one step. The reagent protects a range of amines, including amino acids. For nonionic substrates, pure carbamates are obtained after extractive workup.