一锅法高选择性合成迄今未知的四氢吡咯并[2′,1′:3,4]吡嗪并[1,2- b ]吡咯并[2′,1′:3,4]吡嗪[1,2 - e ][1,2,4,5]四嗪系合物由简单且可用的N-烯基吡咯-2-甲醛和肼开发而成。该反应以非常容易的方式进行,并且可以耐受吡咯和肼中的不同取代基。一类新型有机化合物,四氢二吡咯并二吡嗪四嗪,被证明是有前景的 pH 敏感切换剂,可在酸性介质中递送N-氨基吡咯并吡嗪鎓盐,然后在碱性介质中再次递送四氢二吡咯并二吡嗪四嗪。两种转化都以定量产率产生产物。
Preparation of Cyclic Prodiginines by Mutasynthesis in
<i>Pseudomonas putida</i>
KT2440
作者:Andreas Sebastian Klein、Hannah Ursula Clara Brass、David Paul Klebl、Thomas Classen、Anita Loeschcke、Thomas Drepper、Sonja Sievers、Karl‐Erich Jaeger、Jörg Pietruszka
DOI:10.1002/cbic.201800154
日期:2018.7.16
the bacterium's exceptional suitability as a mutasynthesis host for the production of these cytotoxic secondary metabolites. Moreover, the produced cyclic prodiginines proved to be autophagy modulators in human breast cancer cells. One promising cyclic prodiginine derivative stood out, being twice as potent as prodigiosin, the most prominent member of the prodiginine family, and its synthetic derivative
The [6](2,4) pyridinophane derivatives [(11a) and (11b)] have been prepared by treating 4,5,6,7,8,9-hexahydro-1H-cyclo-,octa[b]pyrrole(5b) with dichloro- and dibromo-carbene, respectively. The respective yields of compounds (11a) and (11b) obtained were modest and poor.
通过处理4,5,6,7,8,9-六氢-1 H-环-,八[ b ]吡咯制备[6](2,4)吡啶并ane衍生物[(11a)和(11b)]。(5b)分别具有二氯-和二溴-卡宾。所获得的化合物(11a)和(11b)的各自产率适中且较差。
作者:Hannah U. C. Brass、Andreas S. Klein、Silke Nyholt、Thomas Classen、Jörg Pietruszka
DOI:10.1002/adsc.201900183
日期:——
activity of prodiginines varies depending on their structure, prodiginine derivatives are of interest. In order to extend the prodiginine structural diversity, new condensing enzyme homologs of PigC were analysed. The condensing enzyme PigC from S. marcescens catalyses the last step in prodiginine biosynthesis and accepts not only its natural substrate, but also synthetically produced monopyrroles. Still
The present invention relates to heteroaryl compounds of formula (I') or a compound in the form of a stereoisomer, an agriculturally acceptable salt, a tautomer, an isotopic form, a N-oxide or a S-oxide thereof. In addition, the present invention further relates to the use of a compound of formula (I) or an agriculturally acceptable salt, a stereoisomer, a tautomer, an isotopic form, a derivative or mixture thereof, as phyto fungicide.