Simple Approach to Highly Functionalized Trisubstituted Tetrahydropyrimidine-2,4-diones from Perhydropyrazino[1,2-f]pyrimidine-3,6,8-trione Precursors
作者:Rosario González-Muñiz、Rosario Patiño-Molina、M. García-López、Edurne Cenarruzabeitia、Joaquín Del Río
DOI:10.1055/s-2007-965962
日期:2007.4
Unprecedented trisubstituted tetrahydropyrimidine-2,4-diones were easily synthesized in two steps involving Boc-amide protection and controlled ring opening, from perhydropyrazino[1,2-f]pyrimidine-3,6,8-triones. These bicyclic derivatives were prepared by reaction of 2-oxopiperazines derived from dipeptides with isocyanates, followed by cyclization. The monocyclic pyrimidinone derivatives were further elaborated to potential CCK ligands that have contributed to a better understanding of the structural requirements for efficient binding at the CCK1 receptor.
前所未有的三取代四氢嘧啶-2,4-二酮易于通过两步合成,包括Boc-酰胺保护和受控环打开,从全氢吡嗪并[1,2-f]嘧啶-3,6,8-三酮中获得。这些双环衍生物通过源自二肽的2-氧代哌嗪与异氰酸酯反应,随后进行环化制备。单环嘧啶酮衍生物进一步发展为潜在的CCK配体,有助于更好地理解在CCK1受体上高效结合的结构要求。