Novel cyclic octapeptide, method for production of said octapept

Details Novel cyclic octapeptide, method for production of said octapept Novel cyclic octapeptide, method for production of said octapept

1985-08-21

1987-05-26

Phillips, Delbert R.

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

423181, 530321, B01D 1100, C07K 512

Patent

active

046683976

ABSTRACT:
Cyclic octapeptide represented by the general formula: ##STR1## (wherein A denotes an iminoalkylene group of 3 or 4 carbon atoms or an alkylene group of 1 or 2 carbon atoms) are novel substances. They are produced by cyclo-dimerizing specific tetrapeptide esters. They are possessed of excellent properties as an agent for the extraction of ions, particularly alkaline earth metal ions.

REFERENCES:
patent: 4285857 (1981-08-01), Chipens
patent: 4439359 (1984-03-01), Holy et al.
patent: 4486415 (1984-12-01), Freidinger
patent: 4517122 (1985-05-01), Tomalia et al.
The Peptides, vol. I (1965) 96-109.

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