β-Sulfinyl acrylate esters as a convenient source of alkane- and arenesulfenate anions
摘要:
Methyl acrylate esters bearing alkane- and arenesulfinyl units on the 2-carbon liberate sulfenate anions upon nucleophilic attack. The sulfenates are readily captured through sulfur alkylation. When a sulfenate derived from R-cysteine is generated, diastereoselective benzylation is observed. (C) 2003 Elsevier Ltd. All rights reserved.
Diamino isothiazole-1-oxides and 1,1 dioxides as gastric secretion
申请人:Merck & Co., Inc.
公开号:US05171860A1
公开(公告)日:1992-12-15
This invention is directed to diamino isothiazole -1-oxides and -1,1-dioxides and related compounds as well as pharmaceutical compositions and methods useful in the treatment of gastric secretion in mammals.
The present invention aims at providing an isoxazoline derivative and a pharmaceutically acceptable salt thereof, both having an excellent herbicidal effect and an excellent selectivity between crop and weed.
The isoxazoline derivative of the present invention is represented by the following general formula:
1
wherein R
1
is a haloalkyl group; R
2
is a hydrogen atom, an alkyl group, or the like; R
3
, R
4
, R
5
and R
6
are each a hydrogen atom, or the like; Y is a pyrrolyl group, a pyrazolyl group, an isothiazolyl group, an oxazolyl group, an imidazolyl group, a pyridazinyl group, a pyrimidinyl group, a pyrazinyl group, a triazinyl group, a triazolyl group, an oxadiazolyl group, or the like; and n is an integer of 0 to 2.
Compounds of the formula ##STR1## have been found to inhibit gastric secretion in mammalian species.
发现具有通式##STR1##的化合物能够抑制哺乳动物的胃分泌。
β-Sulfinyl acrylate esters as a convenient source of alkane- and arenesulfenate anions
作者:Jennifer S. O'Donnell、Adrian L. Schwan
DOI:10.1016/s0040-4039(03)01521-1
日期:2003.8
Methyl acrylate esters bearing alkane- and arenesulfinyl units on the 2-carbon liberate sulfenate anions upon nucleophilic attack. The sulfenates are readily captured through sulfur alkylation. When a sulfenate derived from R-cysteine is generated, diastereoselective benzylation is observed. (C) 2003 Elsevier Ltd. All rights reserved.