This specific compound, 6-(2-((4-Amino-3-(3-hydroxyphenyl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)methyl)-3-(2-chlorobenzyl)-4-oxo-3,4-dihydroquinazolin-5-yl)-N,N-bis(2-methoxyethyl)hex-5-ynamide, finds its application in chemical synthesis as a versatile intermediate. It possesses a unique structure with multiple functional groups that can be selectively modified to introduce various chemical moieties. In chemical synthesis, this compound can serve as a key building block for the construction of complex molecules or pharmaceutical compounds. Its diverse functional groups enable chemists to perform different types of chemical reactions, such as substitution, addition, or reduction, to generate structurally diverse derivatives. Furthermore, the presence of the ynamide functional group offers the potential for further transformations, such as Sonogashira cross-coupling reactions, to introduce alkynes into the molecule. Overall, the strategic placement of functional groups in this compound makes it a valuable tool for synthetic chemists seeking to access new chemical entities for research or drug discovery purposes.