Microwave-assisted synthesis of the (E)-α-methylalkenoate framework from multifunctionalized allylic phosphonium salts
作者:Lidiane Meier、Misael Ferreira、Marcus M. Sá
DOI:10.1002/hc.21001
日期:——
A convenient and general microwave-assisted method for the synthesis of stereochemicallydefined α-methylalkenoic acids and esters from allylic phosphonium salts in a basic aqueous medium is described. A selective preparation of acids or esters was dependent on the base (NaOH or NaHCO3) employed in the reaction and could be achieved with good to excellent yields under mild conditions in the absence
Die vorliegende Erfindung betrifft eine Zusammensetzung für ophthalmologische Produkte, ensprechende Copolymere und deren Herstellung sowie deren Verwendung zur Herstellung von opthalmischen Linsen oder ophthalmologischen Implantaten sowie diese Produkte.
Polymerizable composition and planographic printng plate precursor using the same
申请人:Shimada Kazuto
公开号:US20060135742A1
公开(公告)日:2006-06-22
The present invention provides a polymerizable composition comprising (A) a compound including a polymerizable unsaturated group and (B) a macromolecular compound including, at a side chain thereof, a structure represented by the following general formula (I):
Z
−
M
+
General formula (I)
wherein Z
−
represents COCOO
−
, COO
−
, SO
3
−
, or SO
2
—N
−
—R where R represents a monovalent organic group and M
+
represents an onium cation. The present invention also provides a negative type planographic printing plate precursor responsive to an infrared laser, the precursor being superior in recording sensitivity and printing durability and using the polymerizable compound as a recording layer.
本发明提供了一种可聚合组合物,该组合物包含(A)一种包括可聚合不饱和基团的化合物和(B)一种大分子化合物,在其侧链上包括由以下通式(I)表示的结构:
Z
-
M
+
通式 (I)
其中 Z
-
代表 COCOO
-
, COO
-
, SO
3
-
或 SO
2
-N
-
-R,其中 R 代表一价有机基团,M
+
代表鎓阳离子。本发明还提供了一种对红外激光有反应的底片式平面印刷版前驱体,该前驱体在记录灵敏度和印刷耐久性方面都很出色,并使用可聚合化合物作为记录层。
New orally active enkephalinase inhibitors: their synthesis, biological activity, and analgesic properties
A series of (4S)-4-[(2S)-benzyl-3-mercaptopropionylamino]-4-(N-phenylcarbamoyl)-butyric acids has been identified as potent systemically active enkephalinase inhibitors. Structure-activity relationships (SAR) are discussed. Further chemical modification of the inhibitors was carried out in order to identify the inhibitors which are orally active in an animal model. Compounds of particular interest are the prodrug-like analogues, including 5b (ONO-9902). Their analgesic effects after oral administration were evaluated. (C) 1998 Elsevier Science Ltd. All rights reserved.
KOMORI, TAKETOSHI;ASANO, KATSUMI;SASAKI, YASUTO;HANAI, HIROMI;MORIMOTO, S+, CHEM. AND PHARM. BULL., 35,(1987) N 6, 2388-2393