专利号:WO-2005103035-A1 优先权日:2004-04-23 标题:Modified fischer indole synthesis of eletriptan 发明人:ASHCROFT CHRISTOPHER PAUL 权利人:PFIZER LTD; ASHCROFT CHRISTOPHER PAUL; PFIZER 摘要:The present invention relates to a new process for the preparation of eletriptan (I), or its enantiomer comprising a modified Fischer indole synthesis, namely the reaction of a compound of formula (II), wherein R1 is a suitable hydrazine protecting group, with a compound of formula (III) wherein R2 is an aldehyde group (-CHO) or the functional equivalent thereof.
专利号:US-7723495-B2 优先权日:2007-01-05 标 题 :Amidite for nucleic acid synthesis and nucleic acid synthesizing method 发明人:FUJIHARA TSUYOSHI; FUJITA SHOZO 权利人:FUJITSU LTD 摘要:To provide an amidite for nucleic acid synthesis, which enables a protective group therein to be removed under moderate conditions and can be practically used, and a nucleic acid synthesizing method using the amidite for nucleic acid synthesis. Specifically, the present invention relates to an amidite for nucleic acid synthesis represented by General Formula (I) below, and a nucleic acid synthesizing method using the amidite for nucleic acid synthesis: n n n n n n n n n n n n where X denotes a base; Y denotes a protective group formed of any one of a 4-aminobutyric acid derivative, an o-aminomethylbenzoic acid derivative, an o-aminophenylacetic acid derivative, an o-aminoethylbenzoic acid derivative, an o-aminomethylphenylacetic acid derivative, an o-aminophenylpropionic acid derivative and a 5-aminovaleric acid derivative; and Q denotes one of a hydrogen atom and a hydroxyl group.
专利号:US-2006211792-A1 优先权日:2003-08-01 标 题:Triangulenium fluorescent dyes and polymers comprising such dyes 发明人:LAURSEN BO W 权利人:LAURSEN BO W 摘要:The invention relates to fluorescent dyes comprising a triangulene structure in the form of a ring system of six, six-membered rings fused in a triangular fashion. The dyes are useful for visualisation of chemical compounds including polymer matrices for e.g. chromatographic separation and isolation of desirable chemical moieties, and for chemical library synthesis.
专利号:CN-108003046-A 优先权日:2016-10-27 标 题:A kind of synthesis technique of 4- methylaminobutyric acids methyl ester hydrochloride
专利号:CN-108003044-A 优先权日:2016-10-27 标题 :A kind of synthesis technique of 4- methylaminobutyric acids hydrochloride