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Synthesis of water soluble PEGylated (copper) phthalocyanines via Mitsunobu reaction and Cu(i)-catalysed azide–alkyne cycloaddition (CuAAC) “click” chemistry
Li, Muxiu.  Polymer Chemistry.  v. Volume 4. no. Number 16.   2013-08-21. p. 4405 - 4411... issn: 1759-9954 .   

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