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US 7,164,018 B2Granted
Polymers based on N-carbamyl-N'-dimethylsilyl methyl-piperazine traceless linkers for the solid phase synthesis of phenyl based libraries
AssigneeBoehringer Ingelheim International GmbH
InventorsEnzo Cereda, Carlo Maria Pellegrini, Monica Quai, Walter Barbaglia
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Abstract
The present invention relates to polymers characterized by novel silicon linkers based on the carbamyl piperazine moiety, methods of preparing these polymers and their use in the solid phase synthesis of compounds or libraries of compounds embracing a phenyl ring in their structure.
Claims2
A compound of formula (IV)
- wherein
- R1 denotes hydrogen, C1–C6-alkyl, C2–C6-alkenyl, C2–C6-alkynyl C1–C6-alkoxy, halogen, NO2 or CF3;
- and
- R2 denotes a group selected from hydroxy, amino, and formyl, being optionally protected by a suitable protective group.
1 more element
Dependencies are inferred from the claim text.