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1. Alkyl Ether Analogs of Chlorophyll-a Derivatives: Part 1. Synthesis, Photophysical Properties and Photodynamic Efficacy (p 194-204)
Ravindra K. Pandey, Adam B. Sumlin, Scott Constantine, Mohamed Aoudia, William R. Potter, David A. Bellnier, Barbara W. Henderson, Michael A. Rodgers, Kevin M. Smith, Thomas J. Dougherty
Volume 64 Issue 1

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http://dx.doi.org/10.1111/j.1751-1097.1996.tb02442.x

2. Heterocyclic compounds. VI. An improved preparation of n-hydroxysuccinimide
Kung-Tsung Wang, Donald N. Brattesan, Boris Weinstein *
Journal of Heterocyclic Chemistry
Volume 3 Issue 1, Page 98

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http://dx.doi.org/10.1002/jhet.5570030123

3.Cyclic N-hydroxyimides in a series of chlorins and porphyrins
Andrei F. Mironov* and Viktoriya S. Lebedeva
Tetrahedron Letters
Volume 39, Issue 8, 19 February 1998, Pages 905-908

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http://dx.doi.org/10.1016/S0040-4039(97)10687-6

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