C - Chemistry – Metallurgy – 12 – P
Patent
C - Chemistry, Metallurgy
12
P
195/128.2
C12P 21/02 (2006.01) C07K 14/62 (2006.01)
Patent
CA 1195273
Abstract of the disclosure: The invention relates to a process for the prepara- tion of insulins from analogs of preproinsulins, which comprises reacting preproinsulin analogs, at a pH below the isoelectric point of the insulins in the presence of trypsin or a trypsin-like endopeptidase, wit an ester of natu- ral amino acids or their derivatives and then cleaving off the ester group and other protective groups which may op- tionally be present.
423391
Geiger Rolf
Grau Ulrich
Obermeier Rainer
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Hoechst Aktiengesellschaft
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