氢键辅助的亚硝基芳烃的邻位选择性C(sp 2)-H氨基化和随后的α-C(sp 3)-H脂肪族胺的官能化在无金属条件下实现。亚硝基芳烃和2-羟基-C-亚硝基化合物与N-杂环的环化分别提供了相对于广泛的生物学相关的环稠合的苯并咪唑和结构上新颖的多环咪唑的简便过量。发现在卤代亚硝基芳烃的C(sp 2)–H胺化过程中,亲核芳香族氢取代(S N ArH)比经典S N Ar反应更可取。
作者:Francine Morris、Ryan Vierling、Lauren Boucher、Jürgen Bosch、Caren L. Freel Meyers
DOI:10.1002/cbic.201300187
日期:2013.7.22
Put a ring on it: Selective inhibition of DXP synthase is a challenge in developing anti‐infectives targeting isoprenoid biosynthesis. DXP synthase preferentially turns over sterically demanding aryl nitrososubstrates to form CN bonds, thus suggesting a new design for unnatural bisubstrate analogues as selectiveinhibitors of isoprenoid biosynthesis.
戴上戒指:选择性抑制 DXP 合酶是开发针对类异戊二烯生物合成的抗感染药物的挑战。DXP 合酶优先翻转空间要求高的芳基亚硝基底物以形成 C N 键,因此提出了一种新设计,将非天然双底物类似物用作类异戊二烯生物合成的选择性抑制剂。
Spiropiperidinenaphthoxazine compound
申请人:Showa Denko Kabushiki Kaisha
公开号:US04772700A1
公开(公告)日:1988-09-20
A spiropiperidine-naphthoxazine compound represented by the following general formula (I) is valuable as a photochromic compound: ##STR1## wherein (a) R.sub.1 represents a C1-C18 alkyl group, C7-C15 aralkyl group which may be substituted, a C1-C10 alkenyl group or a C6-C15 aryl group which may be substituted, (b) R.sub.2 through R.sub.9 represent a group R.sub.1 defined above, a hydrogen atom, or a C5-C10 alicyclic ring or a norbonyl or adamantyl group, which is bonded between groups present on one skeleton carbon atom or between groups on adjacent skeleton carbon atoms (at the ortho-position), (c) R.sub. 10 represents a C1-C18 alkyl group, a C7-C15 aralkyl group which may be substituted or a C1-C10 alkenyl group, and (d) R.sub.11 through R.sub.16 represent a hydrogen atom, a C1-C9 alkyl group, a C1-C5 alkoxyl group, a halogen atom, a nitro group or a cyano group.
Novel inhibitors of DXP synthase and methods of use thereof are disclosed.
本发明公开了DXP合酶的新型抑制剂及其使用方法。
SPIROPIPERIDINENAPHTOXAZINE COMPOUNDS
申请人:SHOWA DENKO KABUSHIKI KAISHA
公开号:EP0250599A1
公开(公告)日:1988-01-07
Spiropiperidinenaphtoxazine compounds represented by general formula (I) are useful as photochromic compounds, wherein (a) R1 represents 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 represents 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 represents 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 represents a hydrogen atom, a C1-9 alkyl, C1-5 alkoxy, halogen, nitro or cyano group.