Method for protecting guanidino group and restoring the same

Details Method for protecting guanidino group and restoring the same Method for protecting guanidino group and restoring the same

1981-02-11

1983-01-11

Phillips, Delbert R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

560 13, 562430, C07C10352, C07C14713

Patent

active

043681506

ABSTRACT:
A guanidino group in an amino acid or a peptide can be protected with a specific group, i.e. pentamethylbenzensulfonyl, 2,4,6-trimethoxybenzenesulfonyl, 4-methoxy-2,3,5,6-tetramethylbenzenesulfonyl, 4-methoxy-2,6-dimethylbenzenesulfonyl or 4-methoxy-2,3,6-trimethylbenzenesulfonyl, and said group may easily be removed without affecting the amino acid or the peptide to be derived from the protected amino acid or peptide. Thus, the present invention is useful in the synthesis of peptides containing the guanidino group.

REFERENCES:
patent: 3520917 (1970-07-01), Li et al.
patent: 3997516 (1976-12-01), Nishimura

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