Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Jan Duchek"'
Publikováno v:
Molecules, Vol 18, Iss 4, Pp 3906-3916 (2013)
The synthesis of stable guanofosfocin analogues has attracted considerable attention in the past 15 years. Several guanofosfocin analogues mimicking the three constitutional elements of mannose, ribose, and guanine were designed and synthesized. Inte
Externí odkaz:
https://doaj.org/article/0003f8e7fec8417fb7d165da8c45c5ed
Autor:
Christopher R. McCurdy, Robert D. Giacometti, D. Phillip Cox, Tomas Hudlicky, Stephen J. Cutler, Afeef S. Husni, Lukas Werner, Jan Duchek
Publikováno v:
The Journal of Organic Chemistry. 78:2914-2925
Heteroatom analogues of hydrocodone, in which the N-methyl functionality was replaced with oxygen, sulfur, sulfoxide, and sulfone, were prepared by a short sequence from the ethylene glycol ketal of hydrocodone; a carbocyclic analogue of bisnorhydroc
Autor:
D. Phillip Cox, Mary Ann A. Endoma-Arias, David R. Adams, Tomas Hudlicky, Ales Machara, Martina Wernerova, Lukas Werner, Jan Duchek
Publikováno v:
Advanced Synthesis & Catalysis. 354:2706-2712
N-Oxides derived from oxycodone and O-acyloxymorphone were treated with the Burgess reagent to provide the corresponding oxazolidines in excellent yields. Oxazolidines derived from O-acyloxymorphone were further hydrolyzed to noroxymorphone, whose al
Autor:
Jan Duchek, Andrea Vasella
Publikováno v:
Helvetica Chimica Acta. 94:977-986
Heating ortho-nitro-anilides 1–3 and 2-methyl-N-(3-nitropyridin-2-yl)propanamide (5) with 4 equiv. of a phosphine led to the 2-substituted benzimidazoles 6–8 and to the imidazo[4,5-b]pyridine 10, respectively, in yields between 45 and 85%. Heatin
Publikováno v:
Chemical Reviews. 111:4223-4258
Publikováno v:
Journal of Fluorine Chemistry. 121:101-104
An improved procedure for the radical addition of a,o-diiodoperfluoroalkanes I‐(CF2CF2)n‐I (na 2, 3) to allyl acetate that afford the corresponding bis-adducts AcOCH2CHICH2(CF2CF2)nCH2CHI‐CH2OAc (2a‐2b) has been developed. The primary bis-add
Publikováno v:
Tetrahedron Letters. 52:2940-2942
Guanofosfocins are strong inhibitors of chitin synthases, but also very prone to hydrolytic cleavage. Two advanced intermediates 15 and 20 for the synthesis of stable di-carba-guanofosfocins were prepared via ester 11. Acylation of the allylic C-glyc
Publikováno v:
ChemInform. 42
Autor:
Andrea Vasella, Jan Duchek
Publikováno v:
ChemInform. 42
The reactions of ortho-nitroanilides and the pyridine-derived analogue (XI) afford the 2-substituted benzimidazoles and imidazopyridine respectively.
Autor:
Martin Přádný, Jana Wichterlová, Jan Duchek, Robert Kaplánek, Jiří Michálek, Oldřich Paleta, Dana Chmelíková, Vladimír Církva
Publikováno v:
European journal of medicinal chemistry. 41(11)
Perfluoroalkylated methacrylates 7a – c bearing sulfinyl group within a straight-chain ester group, i.e. CH 2 =C(CH 3 )CO 2 CH 2 CH 2 S(O)–CH 2 CH 2 CF 2 (CF 2 CF 2 ) n CF 3 ( n = 1–3) were prepared by two alternative synthetic sequences from 2