Organomagnesium Based Flash Chemistry: Continuous Flow Generation and Utilization of Halomethylmagnesium Intermediates
摘要:
The generation of highly unstable chloromethylmagnesium chloride in a continuous flow reactor and its reaction with aldehydes and ketones is reported. With this strategy, chlorohydrins and epoxides were synthesized within a total residence time of only 2.6 s. The outcome of the reaction can be tuned by simply using either a basic or an acidic quench. Very good to excellent isolated yields, up to 97%, have been obtained for most cases (30 examples).
AMIDE DERIVATIVES OF BENZENE-SULFONANILIDE, PHARMACEUTICAL COMPOSITION THEREOF AND METHOD FOR CANCER TREATMENT USING THE SAME
申请人:Su Bin
公开号:US20120095092A1
公开(公告)日:2012-04-19
The invention provides a compound of formula (I), a pharmaceutical composition thereof, a method of preparing a medicament for the treatment of a cancer, and a method of treating cancers. The invention exhibits merits against cancers such as significantly higher potency and effectiveness over a broader range of cancers. In formula (I), R
a
is a benzyl group with alkyl and/or alkoxy; R
b
is selected from H and alkyl groups; R
f
is an alkyl; and R
3
is selected from a substituted phenyl, a heterocyclic group, and
wherein Rc is selected from a fused ring, fused rings, and any bivalent cyclic group.
pot by subsequent ring-opening, reductions, and intra- and intermolecular Friedel–Crafts reactions, also in HFIP. Finally, owing to the high pharmacological relevance of the isochroman motif, the synthesis of drug analogues was demonstrated.