有理由的前体材料可用于制备含有与药物α-吡咯烷酮(Flakka)和MDPV(3,4-亚甲基二氧基吡咯烷酮)有关的区域异构丙基和异丙基侧链基团的氨基酮药物。这些化合物在电子电离质谱(EI-MS)中产生等效的区域异构亚胺鎓阳离子碱峰。方法制备了与α-吡咯烷酮和MDPV相关的丙基和异丙基侧链基团,并在EI-MS和串联质谱(MS / MS)产物离子实验中进行了评估。吡咯烷和烷基侧链基团中的氘标记可确认由区域异构EI-MS亚胺阳离子阳离子峰形成的主要产物离子的结构。结果这些亚胺阳离子碱峰显示出特征性的产物离子光谱,可区分结构中的侧链丙基和异丙基。EI-MS光谱中包含亚胺阳离子碱峰的正丙基侧链(m / z 126)在m / z 84处产生主要产物离子,而异丙基侧链的区域异构体m / z 126碱峰产生特征产物离子的m / z为70。吡咯烷环和烷基侧链上的氘标记证实了这些主要产物离子的形成过程。结论产物
Long-Chain Alkyl Cyanides: Unprecedented Volatile Compounds Released by <i>Pseudomonas</i>
and <i>Micromonospora</i>
Bacteria
作者:Diogo Montes Vidal、Anna-Lena von Rymon-Lipinski、Srinivasa Ravella、Ulrike Groenhagen、Jennifer Herrmann、Nestor Zaburannyi、Paulo H. G. Zarbin、Adithi R. Varadarajan、Christian H. Ahrens、Laure Weisskopf、Rolf Müller、Stefan Schulz
DOI:10.1002/anie.201611940
日期:2017.4.3
chain elongation and dehydration in the fatty acid biosynthesis leads to either unbranched saturated or unsaturated nitriles with an ω−7 double bond, such as (Z)‐11‐octadecenenitrile, or methyl‐branched unsaturated nitriles with the double bond located at C‐3, such as (Z)‐13‐methyltetradec‐3‐enenitrile. The nitrile biosynthesis starts from fatty acids, which are converted into their amides and finally
[EN] COMPOSITIONS AND METHODS FOR TREATING BETA-AMYLOID RELATED DISEASES<br/>[FR] COMPOSITIONS ET PROCÉDÉS POUR TRAITER DES MALADIES ASSOCIÉES AU BÊTA-AMYLOÏDE
申请人:AMERICAN LIFE SCIENCE PHARMACEUTICALS INC ALSP INC