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Syntheses of fluorescence-labeled artificial leaf-opening substances, fluorescent probe compounds useful for bioorganic studies of nyctinasty
β Scribed by Minoru Ueda; Yoshiyuki Sawai; Shosuke Yamamura
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- French
- Weight
- 159 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0040-4039
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β¦ Synopsis
In a previous paper, the syntheses of potassium galactolespedezate (1) and potassium galactoisolespedezate (2), artificial leaf-opening substances useful for bioorganic studies of nyctinasty were reported. The fluorescent probe compounds, fluorescence-labeled galactoisolespedezates (3, 10, 13), designed on the basis of 1 and 2, were prepared. In particular, compound 3 was bioactive at 5Γ10 -5 M, one-fiftieth as strong as the natural leaf-opening substance. This fluorescent probe would be useful for bioorganic studies of nyctinasty.
π SIMILAR VOLUMES
Abstraet Potassiut~ lespedezate (1) is the leaf-opening substance of a nyetinastic plant, Lespedeza cuneata G. Don. We have synthesized two sugar-derivatives of 1, potassium galactolespedezate (4) and mannolespedezate (6). Both 4 and 6 were quite effective for the leaf-opening of Cass/a. raimosoides
We developed fluorescent probes (1 and 2) based on the structure of cis-p-coumaroylagmatine (3), a leaf-opening substance of Albizzia julibrissin Durazz. These probes were effective for the leaf-opening of A. julibrissin, and specifically bind to the motor cell of this plant. Moreover, binding of th
We synthesized fluorescence-labeled probe compounds bearing AMCA (1), NBD (2), and dansyl (3) groups as the fluorescent functionality. In these probe compounds, NBD-type probe, 2, showed leaf-opening activity at 5Γ10 -6 M. The bioactivity of 2 is one-fifth as strong as that of the natural product, p