ChemInform Abstract: Regioselective Syntheses of Ether-Linked Porphyrin Dimers and Trimers Related to Photofrin-II.

ChemInform ◽  
2010 ◽  
Vol 23 (12) ◽  
pp. no-no
Author(s):  
R. K. PANDEY ◽  
F.-Y. SHIAU ◽  
T. J. DOUGHERTY ◽  
K. M. SMITH
2004 ◽  
Vol 57 (11) ◽  
pp. 1091 ◽  
Author(s):  
Christopher J. Byrne ◽  
Mathew A. Cooper ◽  
Prudence A. Cowled ◽  
Robert A. W. Johnstone ◽  
Lorraine Mackenzie ◽  
...  

The synthesis of diporphyrins and analogous compounds related to those present in the oligomeric fraction (Photofrin II) obtained from hematoporphyrin derivative (HPD) is described. The photodynamic activity of these compounds, in vivo, varies from inactive to as active as Photofrin II. Factors that are important in determining this anticancer activity of the synthetic compounds are the presence of hydrophobic side chains, as well as the propionic acid side chains of the hematoporphyrin derived materials, and the nature of the linking group between the porphyrins.


Tetrahedron ◽  
1991 ◽  
Vol 47 (46) ◽  
pp. 9571-9584 ◽  
Author(s):  
Ravindra K. Pandey ◽  
Fuu-Yau Shiau ◽  
Thomas J. Dougherty ◽  
Kevin M. Smiths

2000 ◽  
Vol 72 (12) ◽  
pp. 2265-2274 ◽  
Author(s):  
Jeremy K. M. Sanders

Two different approaches are described for the creation of supramolecular systems potentially capable of recognition and catalysis. Using the design approach, we have been able to accelerate and influence two different Diels­Alder reactions within the cavities of porphyrin dimers and trimers; this is templating from the outside inwards. The selection approach is a synthetic chemical attempt to capture some of the key evolutionary features of biological systems: dynamic combinatorial chemistry is used to create equilibrating mixtures of potential receptors, and then a template is used to select and amplify the desired system. Five potential reactions for such dynamic chemistry are discussed: base-catalyzed transesterification, hydrazone exchange, disulfide exchange, alkene metathesis, and Pd-catalyzed allyl exchange, and preliminary templating results (inside outwards) are presented.


1992 ◽  
Author(s):  
Daniel Braichotte ◽  
Georges A. Wagnieres ◽  
J. M. Philippoz ◽  
Roland Bays ◽  
Hans-Beat Ris ◽  
...  
Keyword(s):  

1986 ◽  
Vol 130 (6) ◽  
pp. 555-559 ◽  
Author(s):  
U. Hofstra ◽  
R.B.M. Koehorst ◽  
T.J. Schaafsma

2000 ◽  
Vol 24 (3) ◽  
pp. 113-114 ◽  
Author(s):  
Mutsumi Kimura ◽  
Takuya Kitamura ◽  
Motonori Sano ◽  
Tsuyoshi Muto ◽  
Kenji Hanabusa ◽  
...  

2000 ◽  
Vol 126 (10) ◽  
pp. 601-606 ◽  
Author(s):  
Nagahiko Yumita ◽  
Ryuichiro Nishigaki ◽  
Shin-ichiro Umemura

Author(s):  
Masaki Ueda ◽  
Masaki Kimura ◽  
Shinobu Miyagawa ◽  
Masaya Naito ◽  
Hikaru Takaya ◽  
...  

In this study we self-assembled the four-armed porphyrin hetero dimer capsule Cap4, stabilized through amidinium–carboxylate salt bridges, in CH2Cl2 and CHCl3. The dimer capsule Cap4 was kinetically and thermodynamically more...


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