PharmaBlock specialized in the design and synthesis of biologically-biased scaffolds, building blocks and chiral intermediates. Currently in stock are a full range of functionalized 4-membered ring products such as azetidines, oxetanes and cyclobutanes; functionalized purine-related derivatives; functionalized azaindole derivatives and functionalized pyrimidine, pyrazine and pyridazine derivatives. Many compounds available in our stock are supplied exclusively by...