Pteridin-4(3H[hair space])-ones and related compounds: synthesis via intermolecular aza-Wittig reaction–heterocyclization and crystal structure

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Tomohiro Okawa, Masaru Kawase, Shoji Eguchi, Akikazu Kakehi and Motoo Shiro


Abstract

2,3-Disubstituted pteridin-4(3H[hair space])-one derivatives have been synthesized by the intermolecular aza-Wittig reaction–heterocyclization methodology. The structures of 3-allyl-2-anilinopteridin-4(3H[hair space])-one and 2-anilino-3-isopropylpteridin-4(3H[hair space])-one were determined by X-ray crystallographic analysis. Furthermore, imidazo[2,1-b]pteridine derivatives were synthesized by heterocyclization including iodoamination.


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