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Synthesis of structurally constrained 4-quinazolinone derivatives with a tetrahedral C-2 atom present in three rings

Tetrahedron , 2009, 65 (41), 8582-8586

DOI: 10.1016/j.tet.2009.07.059

Iminov R. T.; Tverdokhlebov A. V.; Tolmachev A. A.; Volovenko Y. M.; Shishkina S. V.; Shishkin O. V.

The reaction of 2-aminobenzamides with 2-oxocyclopentane-, 2-oxocyclohexane-, and 2-oxocycloheptaneacetic acids esters was found to give 7a,8,9,10-tetrahydrocyclopenta[2,3]pyrrolo[1,2-a]quinazoline-6,12(7H,11H)-diones, 7,7a,8,9,10,11-hexahydro-6H-indolo[1,7a-a]quinazoline-6,13(12H)-diones, and 7a,8,9,10,11,12-hexahydrocyclohepta[2,3]pyrrolo[1,2-a]quinazoline-6,14(7H,13H)-diones, respectively. The relative configuration with the cis-fused butyrolactam and cycloalkane rings was assigned to the prepared compounds on the basis of an X-ray crystallographic study.

Synthesis of structurally constrained 4-quinazolinone derivatives with a tetrahedral C-2 atom present in three rings

Iminov R. T.; Tverdokhlebov A. V.; Tolmachev A. A.; Volovenko Y. M.; Shishkina S. V.; Shishkin O. V.
Tetrahedron 2009, 65 (41), 8582-8586
DOI: 10.1016/j.tet.2009.07.059

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