Diazo Group Electrophilicity in Kinamycins and Lomaiviticin A: Potential Insights into the Molecular Mechanism of Antibacterial and Antitumor Activity
摘要:
Theoretical and chemical studies of the reactivity of isoprekinamycin, the kinamycins, and the lomaiviticins support the proposal that these natural products exhibit enhanced diazonium salt character and may owe their antitumor antibiotic properties to their ability to act as electrophilic azo-coupling agents in vivo.
Diazo Group Electrophilicity in Kinamycins and Lomaiviticin A: Potential Insights into the Molecular Mechanism of Antibacterial and Antitumor Activity
摘要:
Theoretical and chemical studies of the reactivity of isoprekinamycin, the kinamycins, and the lomaiviticins support the proposal that these natural products exhibit enhanced diazonium salt character and may owe their antitumor antibiotic properties to their ability to act as electrophilic azo-coupling agents in vivo.
Synthesis and Photochromic Properties of 2<i>H</i>,9<i>H</i>-Indeno[1,2-<i>f</i>]- and 3<i>H</i>,7<i>H</i>-Indeno[2,1-<i>i</i>]- naphtho[2,1-<i>b</i>]pyrans
作者:Christopher D. Gabbutt、B. Mark Heron、Craig A. Mars、Steven M. Partington
DOI:10.1080/15421400590946334
日期:2005.5.1
phenols with 1,1-diarylprop-2-yn-1-ols give indeno[2,1-i]- and indeno[1,2-f]- naphtho[2,1-b]pyranones respectively. The photochromic properties of these and the reduced derivatives are reported. A rationale for the pronounced hypsochromic shift in λmax of the photomerocyanine from a 2H,9H-indeno[1,2-f]naphtho[2,1-b]pyran is presented.