Cyclobutane diamines (i.e., cis- and trans-1,3-diaminocyclobutane, 6-amino-3-azaspiro[3.3]heptane, and 3,6-diaminospiro[3.3]heptane) are considered as promising sterically constrained diamine building blocks for drug discovery. An approach to the syntheses of their Boc-monoprotected derivatives has been developed aimed at the preparation of multigram amounts of the compounds. These novel synthetic
环丁烷二胺(即顺式和反式-
1,3-二氨基环丁烷,6-
氨基-3-氮杂螺[3.3]
庚烷和3,6-二
氨基螺[3.3]
庚烷)被认为是有前途的受空间约束的二胺结构药物发现。已经开发了合成其Boc单保护衍
生物的方法,旨在制备多克量的化合物。这些新颖的合成方案利用经典的
丙二酸酯烷基化
化学方法来构建
环丁烷环。
环丁烷二胺衍
生物的构象偏好已通过X射线衍射进行了评估,并与空间受限的二胺的文献数据进行了比较,后者是市售药物的组成部分。