US PATENT SUBCLASS 530 / 337
.~.~.~ Of amino group

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}
333  DF  .~ Synthesis of peptides {4}
335  DF  .~.~ Protecting or removing protective groups, e.g., carboxyl group protection, etc. {2}
337.~.~.~ Of amino group

DEFINITION

Classification: 530/337

Of amino group:

(under subclass 335) Processes in which the addition or removal is of a protective group that protects an amino group of the peptide.

(1) Note. Protective groups of this type include -C(=O)O-t-Bu (t-butyloxycarbonyl), C6[end subscrpt]H5CH2[end subscrpt]-O-C(=O)- (benzyloxycarbony), and trifluoroacetyl.