Boyle R W, Keir W F, MacLennan A H, Maguire G, Truscott T G
Department of Chemistry, Paisley College of Technology, Renfrewshire, Scotland, U.K.
Cancer Lett. 1987 Dec;38(1-2):9-14. doi: 10.1016/0304-3835(87)90194-7.
It has been suggested recently that neither an ester nor an ether linkage was present in the tumour-localising component of Photofrin II (PFII) (a commercial preparation of DHE). We now report that our chemical and spectroscopic studies, establish the presence of an ester linkage with the possibility that an ether linkage may also be involved.
