Carcinostatic agent

阅读:255发布:2022-02-12

专利汇可以提供Carcinostatic agent专利检索,专利查询,专利分析的服务。并且PURPOSE: To provide a carcinostatic agent containing 2-O-[4-O-(adenyl-β-D-ribofuranosid-5-yl)-α-D-glucopyranosyl]-allaric-α-lactone obtained from specific microbiotics.
CONSTITUTION: A carcinostatic agent containing a nucleic acid derivative I, and effective to the ascetes carcinoma and leukemia of mouse by oral administration, intravenous injection, subcutaneous injection, etc. The compound I is prepared by (1) culturing bacteria belonging to Bacillus thuringiensis under aerobic conditions at 30°C for 20W22 hours to produce the compound II, (2) centrifuging the culturing medium, (3) treating the resulted supernatant liquid with activated charcoal, a strong basic anion exchange resin, and a strong acidic cation exchange resin, to effect the purification and the intramolecular dehydrative cyclization, and (4) removing phosphoric acid from the product with acidic phosphatase.
COPYRIGHT: (C)1980,JPO&Japio,下面是Carcinostatic agent专利的具体信息内容。

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