Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Antonino Focella"'
Autor:
Percy S. Manchand, David L. Coffen, Lucia Serico, Satish C. Choudhry, Peter S. Belica, Antonino Focella, Hubert Maehr, Roxana Yang
Publikováno v:
The Journal of Organic Chemistry. 58:1496-1500
The synthesis of 1α,25,28-trihydroxyvitamin-D 2 (1) from vitamin-D 2 is described. The synthesis involves three key features:() the dissection of the vitamin-D2 side chain, (ii) C-1 hydroxylation, and (iii) the preparation and introduction of the ap
Publikováno v:
ChemInform. 23
Autor:
Antonino Focella, Percy S. Manchand, Roxana Yang, Lucia Serico, David L. Coffen, S. C. Choudhry, Peter S. Belica, Hubert Maehr
Publikováno v:
ChemInform. 24
Publikováno v:
Synthetic Communications. 21:2165-2170
Simple stereospecific syntheses of 2-fluorohexanoic acid 5 were accomplished by conversion of optically pure L-(+)-norleucine to the optically pure hydroxy acid 3 via the classic diazotization reaction followed by substitution of the hydroxy function
Publikováno v:
Helvetica Chimica Acta. 58:795-800
Base catalysed equilibration studies of optically active 2-acetyl-tetrahydro-6,7-dimethoxy-1-methyl-isoquinoline carboxylic esters have been carried out, showing in all cases that the equilibrium mixtures mainly contain the trans-isomer.
Autor:
Antonino Focella, John W. Scott, David R. Parrish, Edward Roy Aig, Gladys B. Zenchoff, Michael Rosenberger
Publikováno v:
Synthetic Communications. 17:419-429
Wittig condensation of (2E,4E)-[5-(3-oxo-2,6,6-trimethyl-1-cyclohexen-1-yl)-3-methyl-2,4-pentadienyl]triphenylphosphonium bromide with ethyl formylcrotonate or 4-hydroxy-3-nethylbutenolide gives, respectively, the (all-E) and (22,4Z)-3,7-dimethyl-9-(
Publikováno v:
Journal of Agricultural and Food Chemistry. 18:78-80
Publikováno v:
Journal of Medicinal Chemistry. 16:418-420
Publikováno v:
Chemischer Informationsdienst. 6
Autor:
Arnold A. Liebman, Gladys B. Zenchoff, David H. Malarek, James Ofengand, Kelvin Nurse, Antonino Focella, Robert B. Denman
During the past several years a variety of chemically reactive derivatives of tRNA have been synthesized for use as affinity labels for amino acid-tRNA ligases, ribosomes, and factors involved in protein biosynthesis. Particularly in the study of Esc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b4d99b073e5e0f94ebe00e2631b593a
https://doi.org/10.1016/s0076-6879(88)64056-0
https://doi.org/10.1016/s0076-6879(88)64056-0