Philip R. Hamann
American Cyanamid
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Publication
Featured researches published by Philip R. Hamann.
Tetrahedron Letters | 1989
G. A. Ellestad; Philip R. Hamann; Nada Zein; George O. Morton; Marshall M. Siegel; Michael J Pastel; Donald B. Borders; William J. McGahren
Abstract Calicheamicin γ1I ( 1 ) reacts with Ph3P to form a dimeric trisulfide ( 3 ), MeSSMe, Ph3PS, and Ph3PO, as well as an aromatic degradation product ( 2 ). The oxygen of the Ph3PO is derived from O2. Calicheamicin also reacts with thiols to produce disulfides (eg. 4 ) with high selectivity. Dimeric trisulfide 3 is generated during this reaction.
Synthetic Communications | 1989
Philip R. Hamann; Allan Wissner
Abstract This paper presents new synthetic routes for methyl cis-7-iodo-5-heptenoate (7) and 3-hydroxycyclopent-2-enone (15a), useful intermediates in the synthesis of prostanoids.
Archive | 1996
Martin P. Kunstmann; Irwin Hollander; Philip R. Hamann; Arthur Kunz
Archive | 1995
Philip R. Hamann; Lois Hinman; Irwin Hollander; Ryan Holcomb; William Hallett; Hwei-Ru Tsou; Martin J. Weiss
Archive | 1995
Martin P. Kuntsmann; Irwin Hollander; Philip R. Hamann
Archive | 1995
Philip R. Hamann; Lois Hinman; Irwin Hollander; Ryan Holcomb; William Hallett; Hwei-Ru Tsou; Martin J. Weiss
Archive | 1995
Philip R. Hamann; Lois Hinman; Irwin Hollander; Ryan Holcomb; William Hallett; Hwei-Ru Tsou; Martin J. Weiss
Archive | 1995
Philip R. Hamann; Lois Hinman; Irwin Hollander; Ryan Holcomb; William Hallett; Hwei-Ru Tsou; Martin J. Weiss
Archive | 1994
William J. McGahren; Martin Leon Sassiver; G. A. Ellestad; Philip R. Hamann; Lois Hinman; Janis Upeslacis
Archive | 1989
G. A. Ellestad; William J. McGahren; Martin Leon Sassiver; Philip R. Hamann; Lois Hinman; Janis Upeslacis
