Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Georges, Dewynter"'
Publikováno v:
Letters in Organic Chemistry
Letters in Organic Chemistry, Bentham Science Publishers, 2018, 15 (5), pp.352-358. ⟨10.2174/1570178615666180110162202⟩
Letters in Organic Chemistry, Bentham Science Publishers, 2018, 15 (5), pp.352-358. ⟨10.2174/1570178615666180110162202⟩
International audience
Autor:
C. Gabriela Avila-Ortiz, Erika Jiménez-González, Jorge Vargas-Caporali, Georges Dewynter, Eusebio Juaristi, Rodrigo González-Olvera
Publikováno v:
Tetrahedron. 68:9842-9852
A convenient synthetic procedure for the preparation of seven-membered cyclic α,β-dipeptides is described. Following coupling of N-protected α-amino acids with N-substituted β-amino acid tert-butyl esters, that affords linear α,β-dipeptides, th
Publikováno v:
Tetrahedron: Asymmetry
Tetrahedron: Asymmetry, Elsevier, 2010, 21, pp.2361-2366. ⟨10.1016/j.tetasy.2010.09.001⟩
Tetrahedron: Asymmetry, Elsevier, 2010, 21, pp.2361-2366. ⟨10.1016/j.tetasy.2010.09.001⟩
The chiral cyclosulfamide (S)-2-benzyl-4-isopropyl-1,2,5-thiadiazolidine 1,1-dioxide was designed as a chimera of Evans and Oppolzer chiral auxiliaries. The N-propionyl derivative appeared to be very powerful for the stereocontrolled synthesis of chi
Publikováno v:
Journal of Peptide Science. 15:474-478
The electrophilic reactivity of Boc-DKPs has been studied. Thanks to Boc activation, the opening ability of carbonyl lactam groups is enhanced. According to experimental conditions, this enabled the synthesis of Boc-amino acid derivatives or original
Publikováno v:
Tetrahedron Letters. 49:906-909
The unexpected reactivity of 2,5-diketopiperazines under basic conditions, thanks to N -Boc activation, allows access to valuable pharmacological scaffolds, such as original statine derivatives. Toward this transannular rearrangement of activated lac
Publikováno v:
Bioorganic and Medicinal Chemistry
Bioorganic and Medicinal Chemistry, Elsevier, 2006, 17 (1), pp.61-65. ⟨10.1002/hc.20183⟩
Bioorganic and Medicinal Chemistry, Elsevier, 2006, 17 (1), pp.61-65. ⟨10.1002/hc.20183⟩
A series of new chiral N,N′-sulfonyl bis-oxazolidin-2-ones were synthesized starting from 2-aminoalcohols, sulfuryl chloride, and diethyl carbonate. This method utilizes natural amino acids as a source of chirality for the preparation of oxazolidin
Publikováno v:
Journal of Combinatorial Chemistry. 4:429-435
A novel solid-phase strategy allows the efficient preparation of "traceless" sulfahydantoins. A total of 28 derivatives, with crude purity generally higher than 85%, were prepared by parallel synthesis. Through reductive alkylations, Mitsunobu reacti
Publikováno v:
Heteroatom Chemistry. 12:1-5
Publikováno v:
Synthetic Communications. 30:2541-2548
A one-step synthesis of 5-oxazolecarbamates 1–11 can be easily carried out starting from N-acetylated and benzoylated aminoacids such as Gly, Ala, Leu, Phe, and chlorosulfonyl carbamates, prepared in situ by addition of alcohols on chlorosulfonyl i
Publikováno v:
Tetrahedron. 56:2427-2435
Resume Le pharmacophore 2-chloroethylnitrososulfamide (CENS), aux proprietes oncostatiques, a ete associe a des aminoacides naturels (phenylalanine, proline, acide aspartique, sarcosine). La synthese est menee a partir d'esters methyliques et tertbut