Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1992-04-22
1993-11-23
Russell, Mark
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
546134, 549 26, 549 27, 549388, 549392, 560 27, 560 28, 560 38, 562401, 562441, 562443, 562444, 562452, 562456, 562455, 548200, 548215, 548230, C07D45302, C07D31182, C07D33512, C07C23120
Patent
active
052645770
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.
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J. March, "Advanced Organic Chemistry" 3rd ed. pp. 104-107, John Wiley & Sons, New York (1985).
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Zhurnal Organicheskoi Khimii 1:2069-2071 (1965) Ryaboi, V. I. & Ginzburg, O. F.
Beylin Vladimir
Chen Huai G.
Goel Om P.
Marlatt Mark E.
Topliss John G.
Russell Mark
Tinney Francis J.
Warner-Lambert & Company
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