A Convenient Synthesis of Novel Spiroisoindole γ-Halobutyrolactones via Halocyclization of γ-Ethylenic Acids
摘要:
gamma-Ethylenic carboxylic acids are cyclized to spirolsoindolone gamma-halomethylbutyrolactones, in the presence of NBS or NIS and K2CO3. The corresponding haloaspirobutyrolactones were isolated in high yields (57-95%).
A Convenient Synthesis of Novel Spiroisoindole γ-Halobutyrolactones via Halocyclization of γ-Ethylenic Acids
摘要:
gamma-Ethylenic carboxylic acids are cyclized to spirolsoindolone gamma-halomethylbutyrolactones, in the presence of NBS or NIS and K2CO3. The corresponding haloaspirobutyrolactones were isolated in high yields (57-95%).
Access to 3-spiroindolizines containing an isoindole ring through intra-molecular arylation of spiro-<i>N</i>-acyliminium species: a new family of potent farnesyltransferase inhibitors
N-acyliminium precursors. The latter led, in addition to the spiro-6-membered aza-heterocycles, to the formation of scarce spiro-5-membered analogues which show promising inhibitory activities on human farnesyltransferase in the nanomolar range demonstrating improved IC50 values of up to 1.5 nM.
A Convenient Synthesis of Novel Spiroisoindole γ-Halobutyrolactones via Halocyclization of γ-Ethylenic Acids
作者:Mohamed Othman、Mohamed M. Rammah、Kabula Ciamala、Michael Knorr、Carsten Strohmann、Mohamed B. Rammah
DOI:10.3987/com-09-11787
日期:——
gamma-Ethylenic carboxylic acids are cyclized to spirolsoindolone gamma-halomethylbutyrolactones, in the presence of NBS or NIS and K2CO3. The corresponding haloaspirobutyrolactones were isolated in high yields (57-95%).