Metabolism of N-alkyldiamines and N-alkylnortropinones by transformed root cultures of Nicotiana and Brugmansia
作者:Henry D Boswell、Birgit Dräger、John Eagles、Carol McClintock、Adrian Parr、Andreas Portsteffen、David J Robins、Richard J Robins、Nicholas J Walton、Chi Wong
DOI:10.1016/s0031-9422(99)00292-7
日期:1999.11
tropinone were fed to transformed root cultures of Nicotianarustica and/or a Brugmansia candida × aurea hybrid. These cultures were made by the transformation of the relevant plant species with Agrobacterium rhizogenes . A number of the metabolites, notably those showing a relatively modest alteration in the N -alkyl substituent, were metabolized in vivo to form homologues of the normal alkaloids biosynthesized
摘要 将一系列 N-甲基腐胺和托品酮的类似物喂入转化的 Nicotiana rustica 和/或 Brugmansia candida × aurea 杂种的根培养物。这些培养物是通过用发根农杆菌转化相关植物物种而制成的。许多代谢物,特别是那些在 N-烷基取代基中表现出相对温和改变的代谢物,在体内代谢形成由这些根生物合成的正常生物碱的同系物。这些产品通过 GC/MS 进行鉴定并与一些合成参考材料进行比较。N-烷基取代基大小发生重大变化的类似物根本没有代谢。在 N. rustica 培养物中,以 1 mM 喂食的类似物显着影响了正常生物碱的分布,在存在 N-n-丙基腐胺的情况下,发现尼古丁最多减少 4 倍。吡咯烷系列和哌啶系列的生物碱之间的比例也受到影响。相比之下,念珠菌×金黄色混合培养物中 1 mM 类似物的存在不会抑制或显着干扰正常生物碱谱的积累。讨论了使用这些培养物从简单的前体制造复杂的新产品的潜力。
Chemical Synthesis and Biological Effect on Xylem Formation of Xylemin and Its Analogues
(6 ) and the analogue N ‐(4‐aminobutyl)cyclopentylamine (21 ) promoted the expression level of thermospermine synthase ACAULIS5 (ACL5 ) and enhanced xylemformation. In addition, xylemin (6 ) was found to significantly promote lateral root formation, whereas xyleminanalogues 18 –23 including 21 did not. These results indicate that the analogue 21 has the potential as a novel inhibitor of thermospermine
A method may produce an isoquinoline-6-sulfonamide derivative useful as a medicinal drug; and an intermediate which is used for the method, and more specifically, a 1,4-diazocane compound of formula (8), wherein R
4
is an amino protecting group, or a salt thereof.
A method of producing an organosilicon compound includes substituting at least an OR
1
group of a compound shown by the following general formula (1) to obtain a compound shown by the following general formula (2),
Si(OR
1
)
3-m
Y
1
m
—R
2
—Si(OR
3
)
3-n
Y
2
n
(1)
Si(OR
4
)
3-m
Y
1
m
—R
2
—Si(OR
4
)
3-n
Y
2
n
(2).
COMPOSITIONS AND METHODS COMPRISING A BIOCIDAL POLYAMINE
申请人:Curza Global, LLC
公开号:US20150038512A1
公开(公告)日:2015-02-05
Compounds, compositions, and methods comprising a polyamine compound are described, which may be used to kill, disperse, treat, or reduce biofilms, or to inhibit or substantially prevent biofilm formation. In certain aspects, the present invention relates to compounds, compositions, and methods comprising polyamine compounds that have antimicrobial or dispersing activity against a variety of bacterial strains capable of forming biofilms.