New norditerpenoids and a diterpenoid from a sponge that inhibit the lyase activity of DNA polymerase β
作者:V.S.Prakash Chaturvedula、Zhijie Gao、Shannon H. Thomas、Sidney M. Hecht、David G.I. Kingston
DOI:10.1016/j.tet.2004.08.017
日期:2004.10
Using an assay to detect inhibitors of the lyase activity of DNA polymerase beta, bioassay-directed fractionation of a CHCl3 extract of an unidentified sponge of the family Demospongiae resulted in the isolation of the new diterpenoid 1, the new bis-norditerpenoids 2-3, and the two known compounds spongia-13(16),14-dien-19-oic acid (4), and methylspongia-13(16),14-dien-19-oate (5). The structures of the new compounds were established on the basis of extensive 1D and 2D NMR spectroscopic interpretation. All five compounds inhibited the lyase activity of DNA polymerase beta. (C) 2004 Elsevier Ltd. All rights reserved.
Cyclization and rearrangement of diterpenoids. III. Synthesis of isoagatholactone and methyl spongia-13(16),-14-dien-19-oate
作者:P. F. Vlad、N. D. Ungur
DOI:10.1007/bf00580023
日期:1984.11
Capelle, N.; Braekman, J. C.; Daloze, D., Bulletin des Societes Chimiques Belges, 1980, vol. 89, # 5, p. 399 - 404
作者:Capelle, N.、Braekman, J. C.、Daloze, D.、Tursch, B.