- D-phenyl glycine derivative and its preparation and use
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The invention discloses D-phenylglycine derivatives as shown in a formula I. In the formula 1, XR2 is methoxy, and R1 is ethyl, (N-fmoc-amino) methyl and the like; or R1 is chloromethyl, and XR2 is ethoxy, butoxy, N-(2-hydroxyethyl) amino, N-methylamino,
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Paragraph 0051-0052
(2016/12/01)
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- The reaction of optically active α-aminocarboxylic acid hydrazides with triethyl orthoesters
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New derivatives of 2-(1-amino-1-phenylmethyl)-1,3,4-oxadiazole and 1,2,4-triazin-6-one were synthesised in the reactions of optically active α-aminocarboxylic acid hydrazides and triethyl orthoesters in xylene. The electronic and steric effects of substituents at the α position influencing the formation of five- or six-membered products are discussed.
- Kudelko, Agnieszka,Zieliński, Wojciech,Ejsmont, Krzysztof
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experimental part
p. 7838 - 7845
(2011/10/12)
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