Chemistry: natural resins or derivatives; peptides or proteins; – Peptides of 3 to 100 amino acid residues – Cyclic peptides
Reexamination Certificate
2007-09-11
2007-09-11
Nazario-Gonzalez, Porfirio (Department: 1621)
Chemistry: natural resins or derivatives; peptides or proteins;
Peptides of 3 to 100 amino acid residues
Cyclic peptides
C556S021000, C556S022000, C548S101000, C540S460000, C034S329000, C034S337000, C570S190000, C570S211000
Reexamination Certificate
active
11006475
ABSTRACT:
A process for removing ruthenium or ruthenium-containing compounds from a reaction mixture comprising a compound of the following formula I in an organic solvent using supercritical fluid processing techniques:wherein RA, R3, R4, D and A are as defined herein. This invention has particular application for removing ruthenium-containing catalyst and ruthenium-containing catalyst by products from reaction mixtures that result from ring-closing olefin metathesis (RCM) reactions.
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Gallou Fabrice
Saim Said
Yee Nathan K.
Boehringer Ingelheim International GmbH
Datlow Philip I.
Devlin Mary-Ellen M.
Morris Michael P.
Nazario-Gonzalez Porfirio
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