Cyclic amino acids and derivatives thereof

Details Cyclic amino acids and derivatives thereof Cyclic amino acids and derivatives thereof

1993-08-20

1995-01-10

Hollrah, Glennon H.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

562401, 562403, 562405, 560 19, 560 27, 560 38, 549 59, 549 70, 549483, 549475, 548217, 548255, 548240, 548253, 546135, 546169, 546268, 546136, 564168, 564169, 564189, 544355, C07C22914, C07C23347, C07B 5500, C07D21538

Patent

active

053809254

ABSTRACT:
Novel cyclic amino acids which are useful in preparing biologically active peptides as well as a process for the preparation of D and L enantiomers of the cyclic amino acids are described where an N-protected derivative of the racemic cyclic amino acid is treated with (-)cinchonidine and the resulting salt resolved into the desired enantiomers, as well as derivatives thereof and valuable intermediates used in the process.

REFERENCES:
patent: 3888900 (1975-06-01), Houlihan et al.
patent: 3950425 (1976-04-01), van der Burg
Nestor Jr. et al, Synthesis and Biological Activity of Some Very Hydrophobic Superagonist . . . J. Med. Chem. 1982, 25, 795-801.
Zhurnal Organicheskoi Khimii 1:2069-2071 (1965) Ryaboi, V. I. & Ginzburg, O. F.

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