Picosecond radical kinetics. Alkoxycarbonyl accelerated cyclopropylcarbinyl radical ring openings
作者:Seung-Yong Choi、Martin Newcomb
DOI:10.1016/0040-4020(94)00972-w
日期:1995.1
Rate constants and Arrhenius functions for ringopenings of the (trans-2-ethoxycarbonylcyclopropyl)methyl radical and the (trans-2-tert-butoxycarbonylcyclopropyl)methyl radical were determined by the PTOC-thiol method with PhSeH trapping. At 25°C, these radicals rearrange with rate constants of 7 and 12 × 1010 s−1, respectively.
速率常数和阿仑尼乌斯函数(的环开口反自由基-2-乙氧羰基)甲基和(反式-2-叔-butoxycarbonylcyclopropyl)甲基基团是由PTOC硫醇与PhSeH捕获方法测定。在25°C下,这些自由基的重排速率常数分别为7和12×10 10 s -1。
Synthesis of an advanced intermediate enroute to (−)-clavosolide A
作者:Sadagopan Raghavan、Ravi Kumar Chiluveru
DOI:10.1016/j.tetlet.2017.05.033
日期:2017.6
A stereoselective route to an advanced intermediate toward the synthesis of clavosolide A is disclosed. The key steps include Wadsworth-Emmons cyclopropanation, utilization of a sulfinyl moiety as an internal nucleophile to open a cyclopropanering activated by Hg(II)- to create the C3-C5 stereogenic centers, CC bond formation employing an α-chloro sulfide, asymmetric transfer hydrogenation, regioselective
Ethoxycarbonyl acceleration of cyclopropylcarbinyl radical ring opening
作者:Martin Newcomb、Seung-Yong Choi
DOI:10.1016/0040-4039(93)85045-x
日期:1993.10
Rate constants for ringopening of the [trans-(2-ethoxycarbonyl)cyclopropyl]methyl radical were determined by competition kinetics employing benzeneselenol trapping.
Benzamide derivatives as oxytocin agonists and vasopressin antagonists
申请人:Hudson Peter
公开号:US20080275026A1
公开(公告)日:2008-11-06
Novel compounds according to general formula 1, wherein G
1
is NR
5
R
6
or a fused polycyclic group that are specific OT receptor agonists and/or V
1a
receptor antagonists. Pharmaceutical compositions comprising such compounds are useful in the treatment of, inter alia, primary dysmenorrhoea.
Pyridazinone Derivatives Useful as Glucan Synthase Inhibitors
申请人:Ting Pauline C.
公开号:US20090170861A1
公开(公告)日:2009-07-02
In its many embodiments, the present invention provides -substituted pyridazinone compounds as glucan synthase inhibitors, methods of preparing such compounds, pharmaceutical including one or more of such compounds, methods of preparing pharmaceutical formulations including one or more such compounds or one or more such compounds along with other antifungal agents, and methods of treatment, prevention, inhibition, or amelioration of one or more fungal infections associated with glucan synthase using such compounds or pharmaceutical compositions.