We have developed two new methods for the synthesis of large arrays of smal
l organic molecules and employed them in the synthesis of tetrahydroisoquin
olinones. The first method, using a combination of "tea-bag" synthesis and
synthesis in microtiterplates with "surface suction" separation of solid an
d liquid phase, was applied in the production of a library of 30,816 compou
nds for general screening. The second method, using "tilted centrifugation"
, was employed for the rapid synthesis of an array of 768 compounds for "le
ad explosion".