US PATENT SUBCLASS 530 / 318
.~.~ The cyclisation occurring through the 4-amino radical of 2,4-diamino butanoic acid

Current as of: June, 1999
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530 /   HD   CHEMISTRY: NATURAL RESINS OR DERIVATIVES; PEPTIDES OR PROTEINS; LIGNINS OR REACTION PRODUCTS THEREOF

300  DF  PEPTIDES OF 3 TO 100 AMINO ACID RESIDUES {29}
317  DF  .~ Cyclic peptides {3}
318.~.~ The cyclisation occurring through the 4-amino radical of 2,4-diamino butanoic acid {1}
319  DF  .~.~.~> Polymyxin; related peptides

DEFINITION

Classification: 530/318

The cyclisation occurring through 4-amino radical of 2,4-diamino-butanoic acid:

(under subclass 317) Peptides containing at least one diaminobutanoic acid residue in the peptide cycle.

(1) Note. 2,4 diamino-butanoic acid is abbreviated Dab or DAB.