Photoswitched DNA-Binding of a Photochromic Spiropyran
摘要:
The dramatically different DNA-binding properties of the two isomeric forms of a photochromic spiropyran have been demonstrated, enabling photoswitched DNA binding. The closed, UV-absorbing form shows no signs of interaction with DNA. Upon UV exposure the spiropyran is isomerized to the open form that binds to DNA by intercalation. The process is fully reversible as the corresponding dissociation process is induced by visible light.
Syntheses of Negative Photochromic Crowned Spirobenzopyrans
作者:Sheng-Hua Liu、Cheng-Tai Wu
DOI:10.1080/00397910008087102
日期:2000.3
Two synthetic routes to negative photochromic spirobenzopyrans bearing a monoazacrown moiety at the 8-position were described and compared. Method B gives much higher total yield than method A.