Crystal structures of <i>N</i><sup>6</sup>-modified-amino acid nucleobase analogs(<scp>iii</scp>): adenine–valeric acid, adenine–hexanoic acid and adenine–gabapentine
作者:Angel García-Raso、Angel Terrón、Bartomeu Balle、Adela López-Zafra、Antonio Frontera、Miquel Barceló-Oliver、Juan J. Fiol
DOI:10.1039/d0nj02538k
日期:——
and also adenine⋯adenine self-association via N(9)–H⋯N(3) interactions. In compound (4), that incorporates a gabapentine chain attached to the adenine ring, 3D packing is organized again with protonated carboxylate and N(7)/H–N(6) contacts: [O(19)–H⋯N(7) and O(18)⋯HN(6)] and a water molecule that holds 3 different molecules together by forming three O/N⋯H hydrogen bonds. Again stacking interactions