16807-34-4Relevant articles and documents
Preparation method and application of novel photosensitizer
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Paragraph 0022; 0032; 0034, (2020/02/14)
The invention relates to a preparation method and application of a novel photosensitizer. The photosensitizer is synthesized for the first time. A general formula compound represented by an intermediate formula (I) is used as a mother core, and is subjected to a Knoevenagel reaction with 4-hydroxybenzaldehyde, 3,5-dibromo-4-hydroxybenzaldehyde and 3,5-diiodo-4-hydroxybenzaldehyde to obtain the general formula photosensitizer represented by a formula (II). The method creatively reserves functional groups (R1, R2) on the intermediate formula (I) and the photosensitizer formula (II), and synthesizes the intermediate and the photosensitizer with S and Se as central atoms (Q) for the first time. The novel photosensitizer provided by the invention solves the technical problems that an existing photosensitizer has a narrow absorption range, a poor therapeutic effect in the visible light range, excessive power of a used light source, and inability to introduce functional groups.
Synthesis and antibacterial activity of 2-phenyl-4H-benzo[b]thiopyran-4-ones (thioflavones) and related compounds
Nakazumi,Ueyama,Kitao
, p. 193 - 196 (2007/10/02)
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