Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1989-03-29
1990-04-03
Kight, John
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 5411, 530333, 530334, 530815, C08L 8900, C08F28300, C08K28300
Patent
active
049141511
ABSTRACT:
The present invention relates to a novel polymeric carrier, a process for its production and its use for the preparation of peptides and their intermediates. The process comprises reacting chloromethylated polystyrene (cross-linked with divinylbenzene) with a 4-hydroxy-2-substituted-benzyl alcohol (linker), attaching .alpha.-amino acids with amino and side-chain protection to the carrier thus obtained, and building up a peptide according to the method known in the field of solid phase peptide synthesis (SPPS). The method allows removal of intermediates or final products under extremely mild acidic conditions giving products in high state of purity and yield. The 2-substituent consists of an electron donating group, such as methoxy.
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Gosteli Jacques
Grogg Peter
Mergler Monika
Bachem Feinchemikalein A.G.
Kight John
Nutter Nathan M.
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