Synthesis and Antiinflammatory Activity of Some 1,4-Dihydro-3-methyl-1-(2-thiazolyl)pyrazolo[4,3-<i>c</i>][1,2]benzothiazine 5,5-Dioxides
作者:Pawan K. Sharma、Shanti N. Sawhney
DOI:10.1246/bcsj.66.3843
日期:1993.12
Condensation of 1,4-dihydro-3-methyl-1-thiocarbamoylpyrazolo[4,3-c][1,2]benzothiazine5,5-dioxide with various phenacyl bromides, ethyl 3-aroyl-3-bromopropionates, and ethyl bromopyruvate afforded 1,4-dihydro-3-methyl-1-(2-thiazolyl)pyrazolo[4,3-c][1,2]benzothiazine-5,5 dioxides, which were also prepared by an alternate route in order to confirm their structure, were tested for antiinflammatory activity
TRIFLUOROMETHANESULFONAMIDE DERIVATIVES, PROCESS FOR THEIR PREPARATION, AND HERBICIDES CONTAINING SAME
申请人:IDEMITSU KOSAN COMPANY LIMITED
公开号:EP0305529A1
公开(公告)日:1989-03-08
Trifiuoromethanesuifonamide derivatives represented by general formula (I), herbicides containing them as effective ingredients, and a process for their preparation. In formula (1),
X represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms or a haloalkyl group having 1 to 4 carbon atoms, n represents 1, 2, or 3, A represents (II), (III), (IV), (V) or (VI),
and R1, R2, R3, each represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms. These compounds are prepared by reacting a corresponding amine derivative with trifluoromethanesulfonyl halide or trifluoromethanesulfonic acid anhydride or by oxidizing a thiochroman ring-containing trifluoromethanesulfonamide derivative depending upon the kind of group A in the above general formula. These trifluoromethanesulfonamide derivatives are useful as herbicides and enable the removal of weed without exhibiting any phytotoxicity upon field crops. The derivatives are also utilized as plant growth regulators.
1,2-Benzothiazines. IV.<sup>1</sup> The Synthesis of 7,8-Dihydropyrido[1,2-<i>b</i>][1,2]benzothiazine-10,11(9H,10aH)-dione 5,5-Dioxides as 1,2-Benzothiazine Analogs of Partial Tetracycline Structures
作者:Harold. Zinnes、Roger A. Comes、John. Shavel
DOI:10.1021/jm00314a020
日期:1967.3
1,2-Benzothiazines. II. The Preparation and Sodium Borohydride Reduction of 3-Acyl-2H-1,2-benzothiazin-4(3H)-one 1,1-Dioxides<sup>1</sup>
作者:Harold Zinnes、Roger A. Comes、Francis R. Zuleski、Albert N. Caro、John Shavel