Chemistry: natural resins or derivatives; peptides or proteins; – Peptides of 3 to 100 amino acid residues – Cyclic peptides
Patent
1991-08-27
1994-08-09
Russel, Jeffrey E.
Chemistry: natural resins or derivatives; peptides or proteins;
Peptides of 3 to 100 amino acid residues
Cyclic peptides
530344, C07K 114, C07K 754
Patent
active
053367561
ABSTRACT:
A process for obtaining a compound of the formula ##STR1## in crystalline form by solubilizing the compound in warm aqueous n-propanol and then allowing the solution to stand at ambient temperature until crystal formation is substantially complete is described. The crystalline compound obtained thereby is also described.
REFERENCES:
patent: 5198421 (1993-03-01), Chen et al.
patent: 5202309 (1993-04-01), Schwartz et al.
Weissberger, Technique of Org. Chem., Part 1, Separation & Purif. (Intersci. Pub. Inc. New York), 1956, pp. 548-561.
Kempf August J.
Mathre David J.
Schwartz Robert E.
Daniel Mark R.
Korsen Elliott
Merck & Co. , Inc.
Russel Jeffrey E.
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