Dehydrooligopeptides. XVII. Practical syntheses of all of the diastereomers of N,N-protected 2,3-diaminobutanoic acids from L- and D-threonine derivatives
Syntheses of all of the dioctereomers of 2,3-diaminobutanoic acids, found in some pedtide antibiotics and toxins, were accomplished. The four isomers were derived mainly through two pathways including S(N)2 inversions of the β-substituent of L- or D-threonine derivatives. The various protecting groups and effective nucleophiles for the S(N)2 inversion were examined.
Nakamura,Hirai,Tamotsu,Yonezawa,Shin
p. 1369 - 1377
(2007/10/02)
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