共查询到19条相似文献,搜索用时 93 毫秒
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Two N-Fmoc and S,S′-protected α-amino acids were synthesized by introducing the derivatives of dithioether into a Tyrosine side chain under the Mitsunobu protocol using the diisopropylazodicarboxylate/triphenylphosphine (DIAD/TPP) system. These amino acids provide a potential use in peptide chemistry. 相似文献
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Natalya P. Boyarskaya Yuliya G. Kirillova Elena N. Zvonkova 《Tetrahedron letters》2005,46(43):7359-7362
Four protected pseudopeptides from Glu-, Asp- and Gly-derivatives have been prepared via Mitsunobu condensation. It was shown to be a universal and preparative method which allows the formation of different structural molecules containing reduced peptides. 相似文献
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Thummalapally Srikanth Reddy Dorigondla Kumar Reddy Manchala Narasimhulu Dasari Ramesh Yenamandra Venkateswarlu 《Helvetica chimica acta》2010,93(11):2158-2163
Total synthesis of mevinic acid analog 1 has been achieved efficiently starting from chiral 2,3‐O‐isopropylidene‐D ‐glyceraldehyde ( 2 ). The synthesis involves Mitsunobu reaction and Evans' intramolecular oxa‐Michael syn‐addition reactions as key steps. 相似文献
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E. V. Tret'yakova O. B. Flekhter F. Z. Galin L. V. Spirikhin G. A. Tolstikov 《Chemistry of Natural Compounds》2002,38(3):246-248
Diterpene indoles were prepared by the Fischer reaction from cyclopentenonepimaric acid. The structures of the synthesized compounds were confirmed by IR and NMR spectroscopies. 相似文献
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Nathalie DefacqzVan Tran-Trieu Alex CordiJacqueline Marchand-Brynaert 《Tetrahedron letters》2003,44(51):9111-9114
5-(Hydroxymethyl)-3-(t-butyloxycarbonyl)imidazoline 2 was prepared in four steps from 2,3-diaminopropionic acid in 72% overall yield. Mitsunobu reaction with a series of phenol derivatives gave the corresponding 5-(aryloxymethyl)-3-(t-butyloxycarbonyl)imidazolines 8a-l. Phthalimide and N-benzyl trifluoroacetamide also reacted. 相似文献