We have developed a new library of chalcone derivatives of oxazole-pyrimidines (16a-j) and their structures were confirmed by analytical data. Further. in vitro anticancer activity of the newly prepared compounds 16a-j was assessed against a panel of four human cancer cell lines such as human breast cancer (MCF-7). human lung cancer (A549). https://poolsproductscanadas.shop/product-category/aquarite-parts/