Phenylalanylarginine derivatives, process for producing same and method for measuring activity of enzymes using same
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United States of America Patent
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Apr 12, 1983
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N/A
app pub date -
Sep 9, 1981
filing date -
Sep 16, 1980
priority date (Note) -
Expired
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Abstract
A phenylalanylarginine derivative represented by the formula, ##STR1## wherein R.sub.1 represents hydrogen or an amino-protecting group; R.sub.2 and R.sub.3 represent hydrogen or guanidino-protecting groups; R.sub.4 represents naphthyl. The above compound is useful as an excellent substrate for various enzymes, such as trypsin, plasmin, kallikrein, urokinase, Cl-esterase and the like. Accordingly, the activity of enzymes can be measured by use of said compound as a substrate.
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