The present invention relates to an orthogonally-protected compound of the formula: ##STR1## wherein PG.sub.1 is a first protecting group that is unreactive to a chemistry used at another position within the compound, and that is capable of selective removal without affecting PG.sub.2 or linkage to a solid support; PG.sub.2 is a second protecting group that is unreactive to a chemistry used at another position within the compound, and that is capable of selective removal without affecting PG.sub...

This invention provides a method for preparing molecules that bind to a preselected receptor, whereby the receptor itself acts as an agent for either joining two ligand fragments to form a composite, tight binding ligand, or selects a composite ligand from a mixture in solution where ligand fragments are being joined and unjoined reversibly under equilibrium conditions.

Methods and apparatus for the preparation and use of a substrate having an array of diverse materials in predefined regions thereon. A substrate having an array of diverse materials thereon is generally prepared by delivering components of materials to predefined regions on a substrate, and simultaneously reacting the components to form at least two materials. Materials which can be prepared using the methods and apparatus of the present invention include, for example, covalent network solids, i...

Combinatorial chemical libraries of the Formula [S]-C(O)-L'-Z containing dihyroxy amides and hydroxyphosphonate amides are disclosed, in which [S] represents a solid support and -L'-Z is a linker/ligand residue. In these libraries, Z is ##STR1## and Y is --P(O)(OR.sup.6)(OR.sup.7), --CH(OH)--COR.sup.8, --CH.sub.2 CH.dbd.CH.sub.2 --CH.sub.2 CH(OH)CH.sub.2 OH, --CH.sub.2 CHO, --CH.sub.2 CH.sub.2 OH, --CH.sub.2 CH.sub.2 OC(O)NHR.sup.26, --CH.sub.2 CH.sub.2 NR.sup.27 R.sup.28, or ##STR2## The combin...

Disclosed are methods for synthesizing very large collections of diverse thiosaccharide derivatives optionally attached to a solid support. Also disclosed are libraries of diverse thiosaccharide derivatives.

A combinatorial weighing apparatus is provided with a distributing device (1) for distributing products to be supplied and a plurality of weighing receptacles (4) arranged substantially in a plane around the distributing device, a plurality of feeding devices (2, 3) for feeding the products from the distributing device (1) to a corresponding one of the weighing receptacles (4) and an apparatus which is arranged below the weighing receptacles (4) and comprises a central discharge opening (7). The...

A substrate for solid phase synthesis of the formula: ##STR1## is disclosed. Also disclosed are processes for preparing the substrate and intermediates useful therein. Among the novel intermediates are compounds of the formula: ##STR2## wherein t is 0 or 1; n is 3-20; R is OH, an activated ester or the residue of a solid support having a plurality of amino functionalities; A is --O-- or --NH-- and Q is hydrogen or a protecting group for an amine or alcohol.

A weighing assembly includes a hopper for central loading of the articles to be packaged, a channel for conveying the articles from the hopper radially, a member for weighing the articles to be packaged in the form of a plurality of weighing baskets placed peripherally and having lower outlets for discharging the weighed portions of the articles, and, below the weighing baskets, a member for conveying weighed portions of the articles received via the lower discharge outlets of the weighing baske...

An array is created by moving a dispenser toward a solid support until a tip of the dispenser touches the support, withdrawing the tip from the surface and releasing a drop of 5 nanoliters or less in an area smaller than 1 mm.sup.2 to create an array of at least 100 spots.

The present invention describes an encoded combinatorial chemical library comprised of a plurality of bifunctional molecules having both a chemical polymer and an identifier oligonucleotide sequence that defines the structure of the chemical polymer. Also described are the bifunctional molecules of the library, and methods of using the library to identify chemical structures within the library that bind to biologically active molecules in preselected binding interactions.