Iterative Assembly of Polycyclic Saturated Heterocycles from Monomeric Building Blocks
作者:Fumito Saito、Nils Trapp、Jeffrey W. Bode
DOI:10.1021/jacs.9b01537
日期:2019.4.3
just a few monomers enable the programmable construction of rotationally restricted, nonplanar heterocyclic arrays with discrete sizes and molecular shapes. The three-dimensional structures of these constrained scaffolds can be quickly and reliably predicted by DFT calculations and the target structures immediately decompiled into the constituent buildingblocks and assembly sequences. As a demonstration
具有可预测形状和结构的多环饱和杂环通过双功能甲锡胺协议 (SnAP) 试剂和单个吗啉形成组装反应的迭代耦合组装。仅几个单体的组合就可以可编程构建具有离散尺寸和分子形状的旋转受限的非平面杂环阵列。这些受约束的支架的三维结构可以通过 DFT 计算快速可靠地预测,目标结构立即反编译为组成构件和组装序列。作为演示,构建块的计算机组合预测具有基本形状的饱和七环结构,包括螺旋、S 形转弯和 U 形转弯,
Synthetic fermentation of β-peptide macrocycles by thiadiazole-forming ring-closing reactions
作者:Jonathan G. Hubert、Iain A. Stepek、Hidetoshi Noda、Jeffrey W. Bode
DOI:10.1039/c7sc05057g
日期:——
thiadiazole-forming cyclization reaction between an α-ketoacid and a thiohydrazide. The linear β-peptide precursors were assembled from isoxazolidine monomers by α-ketoacid-hydroxylamine (KAHA) ligations with a bifunctional initiator – a process we have termed ‘synthetic fermentation’ due to the analogy of producing natural product-like molecules from simpler building blocks. The linear synthetic fermentation products
The present invention relates to a process for preparing compounds of general formula I
wherein R
1
and R
2
are defined as in claim
1,
the pharmaceutically acceptable salts and the solvates thereof, which may be prepared starting from compounds of general formula II
wherein R
1
is defined as in claim
1.
The present invention relates to a process for preparing compounds of general formula I
wherein R
1
and R
2
are defined as in claim
1,
the pharmaceutically acceptable salts and the solvates thereof, which may be prepared starting from compounds of general formula II
wherein R
1
is defined as in claim
1.
The present invention relates to a process for preparing compounds of general formula I
wherein R1 and R2 are defined as in claim 1, the pharmaceutically acceptable salts and the solvates thereof, which may be prepared starting from compounds of general formula II
wherein R1 is defined as in claim 1.