Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Enrico G. Baggiolini"'
Publikováno v:
Bulletin des Sociétés Chimiques Belges. 91:967-971
Autor:
John Sereno, Andrew D. Batcho, Ronald L. Horst, Milan R. Uskokovic, Enrico G. Baggiolini, Bernard Michael Hennessy
Publikováno v:
Bioorganic & Medicinal Chemistry Letters. 3:1821-1824
A convergent total synthesis of 1α,25,28-trihydroxyergocalciferol (1), using an available A ring synthon and a CD synthon which was prepared via a thermodynamically controlled dipolar cycloaddition of methyl 3,3-dimethylacrylate and a C-23 nitrone f
Publikováno v:
ChemInform. 24
Autor:
John Sereno, Milan R. Uskokovic, Enrico G. Baggiolini, Andrew D. Batcho, Bernard Michael Hennessy, R. L. Horst
Publikováno v:
ChemInform. 25
Publikováno v:
The Journal of Organic Chemistry. 55:243-247
Synthese des composes du titre a partir de (dimethyl-1',5' trimethylsiloxy-5') hexyl-1 (ou [dimethyl-1',4' trimethylsiloxy-5'] hexene-2 yl)-methyl-7a perhydro indenone-4 et d'oxyde de [t-butyldimethylsiloxy-5' fluoro-3' methylene-2' cyclohexylidene]-
Publikováno v:
HETEROCYCLES. 35:791
The intramolecular dipolar cycloadditions of nitrones derived from aldehydes (8) and (14) were found to proceed with a high degree of diastereoselectivity. By taking advantage of the functionality and stereochemical features residing in the cycloaddu
Publikováno v:
Journal of the American Chemical Society. 104:2945-2948
Publikováno v:
Tetrahedron. 43:4887-4903
A novel approach to d-biotin from cysteine, which a utilizes the nitrate oxide To enolthioether double bond cyclization for the formation of C2-C3 of the thiophane ring and the incorporation of the 3-N in the biotin molecule, Is described. the cis re
Autor:
R.L. Horst, Nicholas J. Koszewski, Joseph L. Napoli, Milan R. Uskokovic, Timothy A. Reinhardt, Enrico G. Baggiolini, Donald C. Beitz
Publikováno v:
Analytical Biochemistry. 162:446-452
The use of Fourier transform 1H NMR to characterize vitamin D2 metabolites is described. A 300-MHz spectrometer capable of generating a 6-microseconds pulse and a sweep width of 4000 Hz was used. High-resolution spectra were obtained on 5 micrograms
Publikováno v:
Tetrahedron. 44:3203-3208
The rare naturally occurring heteroyohimbine alkaloid 19-epiajmalicine (1) was prepared from loganin aglucone 6 via a sequence which involves as the central step the conversion of the δ-lactone 7, easily derived from 6, to the 6-epielenolic acid ace