The present invention provides a compound of general formula (II), or a salt or solvate thereof wherein A is independently -A1, -A2, -A3, -A4, -A5, -A6, or -A7, wherein: -A1 is independently C5-12heteroaryl, and is optionally substituted; -A2 is independently thioamido or substituted thioamido; -A3 is independently imidamido, substituted imidamido, N-hydroxyimidamido, or substituted N-hydroxyimidamido; -A4 is independently hydroxamic acid or hydroxamate; -A5 is independently carboxamide or substituted carboxamide; -A6 is independently aliphatic C2-6alkenyl, and is optionally substituted; and -A7 is independently carboxy or C1-4alkyl-carboxylate; and its use in the synthesis of temozolomide and analogues thereof.
本发明提供了通式(II)的化合物,或其盐或溶剂化合物,其中A独立地为-A1、-A2、-A3、-A4、-A5、-A6或-A7,其中:-A1独立地为C5-12杂环芳基,并且可以被取代;-A2独立地为
硫代酰胺或取代
硫代酰胺;-A3独立地为
咪唑酰胺、取代
咪唑酰胺、N-羟基
咪唑酰胺或取代N-羟基
咪唑酰胺;-A4独立地为羟
肟酸或羟
肟酸酯;-A5独立地为羧酰胺或取代羧酰胺;-A6独立地为脂肪族C2-6烯基,并且可以被取代;-A7独立地为羧基或C1-4烷基
羧酸酯;以及其在
替莫唑胺及其类似物的合成中的用途。