著者

寺原 昭 羽石 達生 新井 守 桑野 晴光

出版者

天然有機化合物討論会実行委員会

雑誌

天然有機化合物討論会講演要旨集

巻号頁・発行日

vol.18, pp.286-293, 1974

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The antifungal metabolite, herbicidin A (C_<23>H_<29>O_<11>N_5) and herbicidin B (C_<18>H_<23>O_9N_5) obtained from Streptmyces saganonensis (Strain No 4075) have a plant growth inhibiting effects against to baryard glass, green panicum, tomato and radish ect., in a concentration 37-300ppm without effect to rice. Basic hydrolysis of herbicidin A affords an unsaturated acid 3 which has been confirmed to be 2-hydroxymethyl-2-butenoic acid, and herbicidin B acid 4. Methanolysis of herbicidin A and B with Amberlyst 15 in methanol affords adenine, and C_<19>H_<28>O_<12> 8 and C_<15>H_<24>O_<10> 5 respectively. On the bases of chemical and physico-chemical evidences of these derivatives, structures of herbicidin A and B have been determined to be nucleosides which consist of adenine and an unusual sugar moiety.