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Patent Agency Ranking
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公开(公告)号：KR1019880001240B1
公开(公告)日：1988-07-12
申请号：KR1019860001511
申请日：1986-03-04
Applicant: 한국화학연구원
Abstract: Brassinolide derivs. of formula (I) are prepd. by reacting compds. of formula (II) with a reducing agent, i.e. borane to obtain compds. of formula (III), and removing protecting gps. in 1,2-position of (III). prepn. of (III) comprises dissolving (II) in an inert solvent, adding the reducing agent, agitating sufficiently and adding a thin alkaline solution and a hydrogen peroxide. In the formulas, R is (a) , (b) or (c). (I) have potent, vegetative effects in the growth of vegetation.
Abstract translation: 油菜素甙衍生物 式（I）的化合物是制备的。 通过反应compds。 式（II）的化合物与还原剂即硼烷混合以获得化合物。 的式（III），并除去保护gps。 在（III）的1,2位。 制备方法。 的（III）包括将（II）溶解在惰性溶剂中，加入还原剂，充分搅拌并加入稀碱溶液和过氧化氢。 在式中，R为（a），（b）或（c）。 （一）在植被生长中具有强大的营养效应。
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公开(公告)号：KR1019910005420B1
公开(公告)日：1991-07-29
申请号：KR1019870008013
申请日：1987-07-23
Applicant: 한국화학연구원
IPC: C07J5/00
Abstract: Brassinolide analogues of formula (I) are prepd. by reacting 6,6- ethylen- 2alpha, 3alpha-isopropylen-dioxy-5alpha-pregnan-20S-carboxaldehyde with gregnard reagent, and removing the protecting gp. In (I), R= H, C1-10 straigth chain aliphatic gp., C3-10 side chain aliphatic gp., cyclo gp., methylmethylsulfinyl, ethoxymethyl or armatic gp. opt. substd. by C1-3 alkyl. (I) are useful as a plant growth regulator.
Abstract translation: 式（I）的油菜素内酯类似物是制备的。 通过使6,6-亚乙基-2α，3α-异丙基 - 二氧-5α-孕烷-20S-甲醛与绿色试剂反应，并除去保护gp。 在（I）中，R = H，C 1-10直链脂肪族Gp，C 3-10侧链脂族基团，环Gp，甲基亚甲基亚磺酰基，乙氧基甲基或犰狳gp。 选择。 substd。 通过C 1-3烷基。 （I）可用作植物生长调节剂。
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公开(公告)号：KR1019910005378B1
公开(公告)日：1991-07-29
申请号：KR1019870008041
申请日：1987-07-23
Applicant: 한국화학연구원
IPC: C07J5/00
Abstract: Brassinolide analogues of formula (I) are prepd. by reacting 6,6- ethylene- 2alpha, 3alpha-isopropylen-dioxy-5alpha-pregnan-20S-carboxyaldehyde with lithiumaluminum hydride, treating the obtd. cpd. with acid to remove the protecting gp., and reacting with borane to reduce the 6- position of kefone gp.. In (I), R= H, C1-10 straigth chain aliphatic gp., C3-10 side chain aliphatic gp., cyclo gp., methylmethylsulfonyl, ethoxymethyl or aromatic opt. substd by C1-3 alkyl. (I) are useful as a plant growth regulator.
Abstract translation: 式（I）的油菜素内酯类似物是制备的。 通过使6,6-乙烯-2α，3α-异丙基 - 二氧-5α-孕烷-20S-羧基甲醛与氢化锂铝反应，处理该物质。 CPD。 用酸去除保护gp，并与硼烷反应以减少凯福酮gp的6-位。在（I）中，R = H，C 1-10直链脂肪族gp，C 3-10侧链脂族gp。 ，环gp，甲基甲基磺酰基，乙氧基甲基或芳基选择。 被C 1-3烷基取代。 （I）可用作植物生长调节剂。
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公开(公告)号：KR1019900002065B1
公开(公告)日：1990-03-31
申请号：KR1019860000414
申请日：1986-01-23
Applicant: 한국화학연구원
Abstract: The method for preparing brasinoride analogues or formula (I), useful as plant growth regulator, is presented. Thus, 18.0g of p- toluenesulfonyl chloride is added to 200ml of the solution having 15g of stigmasterol. The above mixture solution is reacted at the room temperature for 12 hrs and the reacted solution is added to 1 litre of 5% sodium bicarbonate solution. The obtained precipitates are filtered, washed with water and dried at below 60≦̸C under vaccum. The above solid is re-crystalized to make the white stigmasterol-3- tosilate. In (I), R is H, C1-10 aliphatic gp., cyclo or aromatic gp.
Abstract translation: 提出了可用作植物生长调节剂的制备布拉希诺类似物或式（I）的方法。 因此，将18.0g对甲苯磺酰氯加入到具有15g豆甾醇的200ml溶液中。 将上述混合溶液在室温下反应12小时，将反应溶液加入到1升5％碳酸氢钠溶液中。 将所得沉淀物过滤，用水洗涤，在真空下在低于60℃的条件下干燥。 将上述固体再结晶以制备白色豆甾醇-3-甲苯磺酸酯。 在（I）中，R为H，C 1-10脂族基团，环或芳族gp。
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