Purine and pyrimidine derivatives from the South China Sea gorgonian Subergorgia suberosa |
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| Authors: | Qi Shu-Hua Zhang Si Gao Cheng-Hai Li Qin-Xing |
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| Institution: | Key Laboratory of Marine Bio-Resourses Sustainable Utilization/Guangdong Key Laboratory of Marine Materia Medica, South China Sea Institute of Oceanology, The Chinese Academy of Sciences, Guangzhou, Guangdong, PR China. shuhuaqi2001@yahoo.com |
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| Abstract: | Three new purine derivatives, namely, 4-caryboxy-5,6-dihydro-4H,8H-pyrimido1,2,3-cd]purine-8,10(9H)-dione (1), 7,9-dihydro-1-(3-oxobutyl)-1H-purine-6,8-dione (2), and 7-hydro-9-(3-oxobutyl)-1H-purine-6,8-dione (3) together with six known purine and pyrimidine derivatives were isolated from the EtOH/CH(2)Cl(2) extracts of the South China Sea gorgonian Subergorgia suberosa. The structures of 1-3 were determined on the bases of extensive spectroscopic analysis, including 1D and 2D NMR data. |
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