谁帮忙下载一篇日本专利 JP57062298，
October, 1980 PREPARATION OF 17ALPHA-CYANOSTEROID
下载一篇日本专利 JP57062298，
答案:2 悬赏:30 手机版
解决时间 2021-02-02 23:09
- 提问者网友：像風在裏
- 2021-02-02 12:26
最佳答案
- 五星知识达人网友：不想翻身的咸鱼
- 2021-02-02 12:48
PREPARATION OF 17ALPHA-CYANOSTEROID
申请(专利)号 JP19800137153 申请日 1980.10.01 公开(公告)号JPS5762298A
公开(公告)日1982.04.15 申请(专利权)人MITSUBISHI CHEM IND
地址 发明(设计)人NITSUTA KAZUMASA
主分类号C07J41/00
摘要
PURPOSE:To obtain the titled compound useful as an intermediate for a luteohormone (derivative) in high selectivity and high yield, by isomerizing a 17alpha-cyano- steroid in the presence of a specific cyano compound in a lower alcoholic solvent. CONSTITUTION:17alpha-Cyano-17beta-hydroxyandrost-4-en-3-one, 17alpha-cyano-17beta- hydroxyandrosta-4,9<(11)>-dien-3-one or an acetal derivative at the 3-position thereof is isomerized in the presence of a cyano compound of the formula MCN (M is alkali metal or a protonated amine), e.g. a basic cyanide such as sodium cyanide or triethylammonium hydrocyanide, in a molar amount of preferably 2-5 times that of the steroid in a lower alcoholic solvent, preferably 1-3C alkyl, at 0-30 deg.C for 2-7hr to give the aimed 17beta-cyano-17alpha-hydroxysteroid.
申请(专利)号 JP19800137153 申请日 1980.10.01 公开(公告)号JPS5762298A
公开(公告)日1982.04.15 申请(专利权)人MITSUBISHI CHEM IND
地址 发明(设计)人NITSUTA KAZUMASA
主分类号C07J41/00
摘要
PURPOSE:To obtain the titled compound useful as an intermediate for a luteohormone (derivative) in high selectivity and high yield, by isomerizing a 17alpha-cyano- steroid in the presence of a specific cyano compound in a lower alcoholic solvent. CONSTITUTION:17alpha-Cyano-17beta-hydroxyandrost-4-en-3-one, 17alpha-cyano-17beta- hydroxyandrosta-4,9<(11)>-dien-3-one or an acetal derivative at the 3-position thereof is isomerized in the presence of a cyano compound of the formula MCN (M is alkali metal or a protonated amine), e.g. a basic cyanide such as sodium cyanide or triethylammonium hydrocyanide, in a molar amount of preferably 2-5 times that of the steroid in a lower alcoholic solvent, preferably 1-3C alkyl, at 0-30 deg.C for 2-7hr to give the aimed 17beta-cyano-17alpha-hydroxysteroid.
全部回答
- 1楼网友：零点过十分
- 2021-02-02 13:23
去日专局网站可以查的。 查的时候，如果特开后面接的是四位数，那么直接把特开二字和-号忽略掉即可，这个四位数就是年份，后面六位数是需要，例如你这个专利查的时候直接填2004230527，类型填a 如果特开后面接的是“平”或者“昭”+一位数或者两位数，那么就费点事了，这个平和昭是日本的年号。如果是平，那么需要将这个数字加上1988，如果是昭需要加1925。 举个例子，如果某日本专利公开号是特开平9-100463，那么你查的时候需要输入1997100463，类型一样填a；如果是特开昭55-100463，那么需要输入1980100463，类型也是a
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