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EnglishTwo C4-cycloadducts between 4′-methylangelicin and thymine were isolated from the photo-reaction (365 nm) between this furocoumarin and DNA. Their capacity to undergo photoreversion at 254 nm and their spectroscopic and NMR data allowed us to assign furan- and pyrone-side structures, respectively, to these photocompounds. The former adduct has a cis-syn configuration; the latter. which was also isolated from a photoreaction between the furocoumarin and thymine in water-methanol solution, was assigned a cis-anti structure.
| Titolo: | 3,4 AND 4',5'-PHOTOCYCLOADDUCTS BETWEEN 4'-METHYLANGELICIN AND THYMINE FROM DNA |
| Autori: | |
| Data di pubblicazione: | 1988 |
| Rivista: | |
| Abstract: | Two C4-cycloadducts between 4′-methylangelicin and thymine were isolated from the photo-reaction (365 nm) between this furocoumarin and DNA. Their capacity to undergo photoreversion at 254 nm and their spectroscopic and NMR data allowed us to assign furan- and pyrone-side structures, respectively, to these photocompounds. The former adduct has a cis-syn configuration; the latter. which was also isolated from a photoreaction between the furocoumarin and thymine in water-methanol solution, was assigned a cis-anti structure. |
| Handle: | http://hdl.handle.net/11577/2501237 |
| Appare nelle tipologie: | 01.01 - Articolo in rivista |
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