Synthesis and characterization of the first water-soluble closely interspaced cofacial porphyrin dimer
作者:Rafik Karaman、Thomas C. Bruice
DOI:10.1021/jo00011a005
日期:1991.5
The first closely spaced quadruply bridged water-soluble cofacial dimer (5) was successfully synthesized by the reaction of porphyrin 2 with sulfonamide 3 followed by N-methylation with methyl iodide. The conformations of 5 and its precursor 4 are largely dependent on the solvent, and the solvent effect is inhibited by protonation or metalation of the porphyrin cores.
Studies on DNA - active agents: The synthesis of the parent carbocyclic subunit of neocarzinostatin chromophore A
作者:Paul A. Wender、Michael Harmata、David Jeffrey、Chisato Mukai、Jean Suffert
DOI:10.1016/s0040-4039(00)82479-x
日期:1988.1
Syntheses and transannular cyclizations of neocarzinostatin-chromophore and esperamicin-calichemicin analogs
作者:Takayuki Doi、Takashi Takahashi
DOI:10.1021/jo00011a002
日期:1991.5
The syntheses of neocarzinostatin-chromophore (NCS-chr) analogues 3 and 4 and esperamicin-calichemicin analogue 5 using transannular [2,3]-Wittig rearrangement of 12-membered cyclic ether 6 and their transannular cyclizations are described.
DOI, TAKAYUKI;TAKAHASHI, TAKASHI, J. ORG. CHEM., 56,(1991) N1, C. 3465-3467
作者:DOI, TAKAYUKI、TAKAHASHI, TAKASHI
DOI:——
日期:——
WENDER, PAUL A.;HARMATA, MICHAEL;JEFFREY, DAVID;MUKAI, CHISATO;SUFFERT, J+, TETRAHEDRON LETT., 29,(1988) N 8, 909-912
作者:WENDER, PAUL A.、HARMATA, MICHAEL、JEFFREY, DAVID、MUKAI, CHISATO、SUFFERT, J+