C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
C07C 69/00 (2006.01) C07C 229/08 (2006.01) C07C 229/22 (2006.01) C07C 229/36 (2006.01) C07C 271/22 (2006.01) C07D 295/15 (2006.01) C07K 1/06 (2006.01) C07K 1/12 (2006.01) C07K 4/00 (2006.01) C07K 14/00 (2006.01) C12P 21/06 (2006.01)
Patent
CA 2079921
Abstract of the disclosure HOE 91/F 419K Carboxylate protective groups, a process for their preparation, their coupling to a functional group, and their use Carboxylates of polar, hydrophilic alcohols of the formula Image in which R is an unbranched or branched organic radical which contains, as polar members between aliphatic or arali- phatic hydrocarbon bridges, ether oxygens, amine nitrogen groups or a mixture of ether and amine groups which can be incorporated into a cyclic structure, where the total length does not exceed 20 members and where, in the case of polyethylene glycol [(CH2-CH2-O)n], n indicates the number of the members and is defined as any integer, and R' is an aliphatic or araliphatic radical which has at least one functional group, are suitable as protective groups since they can be introduced selectively into functional groups of organic compounds and eliminated specifically by lipases.
Braum Guenther
Braun Peter
Kunz Horst
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Hoechst Aktiengesellschaft
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