L Mosti, G Menozzi, P Schenone, F Carlassare, F Baccichetti, F Bordin
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Synthesis and photobiological activity of new N,N-disubstituted 4-amino-3-chloroangelicins.
The synthesis of a series of new N,N-disubstituted 4-amino-3-chloroangelicins (4-amino-3-chloro-2H-furo[2,3-h]-1-benzopyran-2-ones) starting from N,N-disubstituted (E)-5-aminomethylene-6,7-dihydrobenzo[b]furan-4(5H)-ones is described. Their capacity of inhibiting DNA synthesis in Ehrlich ascites tumor cells by U.V.-A light irradiation as well as their phototoxic activity on guinea-pig skin have been studied and the data computed by probit analysis; the results are discussed in the light of the modifications introduced in the molecular structure.
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