SPIROPIPERIDINENAPHTOXAZINE COMPOUNDS.

更新时间:2023-07-01 20:01:27 阅读: 评论:0

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专利名称:SPIROPIPERIDINENAPHTOXAZINE COMPOUNDS.
发明人:KAWAUCHI, SUSUMU,SAEDA,信用证翻译
SHIGERU,YOSHIDA, HARUO
申请号:EP87900272
benzamidine申请日:19861219的意思>鹬蚌相争翻译
公开号:EP0250599A4坚强英文
keithurban>mailbox公开日:
19890621
专利内容由知识产权出版社提供
湖北化妆学校摘要:Spiropiperidinenaphtoxazine compounds reprented by general formula (I) are uful as photochromic compounds, wherein (a) R1 reprents a C1-18alkyl group, an optionally substituted C7-15 aralkyl group, a C1-10 alkenyl group, or an optionally substituted C6-15 aryl group; (b) R2 to R9 are the same as defined for R1, or each reprents a hydrogen atom or is bound to each other to form a C5-10 alicyclic ring, norbornyl or adamantyl on the same skeletal carbon atom or between adjacent (o-position) skeletal carbon atoms; (c) Rio reprents a hydrogen atom, a C1-18 alkyl group, a C7-15 aralkyl group which may be optionally substituted, or a C1-10 alkenyl group; and (d) R11 to R16 each reprents a hydrogen atom, a C1-9 alkyl, C1-5 alkoxy, halogen, nitro or cyano group.
下午好的英文申请人:SHOWA DENKO KABUSHIKI KAISHA
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