14b-chloro-4a-methoxy-3,3-dimethyl-2,3,4a,14b-tetrahydro-1H-benzo[a]pyrano[2,3-c] phenazine:: a new active structural type against Mycobacterium tuberculosis

被引:2
|
作者
Nunes, I. K. da C. [1 ]
De Simone, C. A.
Silva, R. S. F.
Pinto, A. V.
Goulart, M. O. F.
机构
[1] Univ Fed Alagoas, Inst Quim & Biotecnol, BR-57072970 Maceio, AL, Brazil
[2] Univ Fed Rio de Janeiro, Nucleo Pesquisas Produtos Nat, BR-21944971 Rio De Janeiro, Brazil
来源
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS | 2007年 / 63卷
关键词
D O I
10.1107/S1600536807033259
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
The title compound, C22H21ClN2O2, obtained from the reaction of the phenazine of beta-lapachone with trichloroisocyanuric acid, showed a minimum inhibitory concentration of 6.25 ng ml(-1) in tuberculostatic assays against Mycobacterium tuberculosis and established a new structural type with potential interest in medicinal chemistry. The dihydropyran ring adopts a pure chair conformation, while the ring fused to it has a half-chair conformation. The two substituents, OMe and Cl, are in axial positions, due to anomeric effects towards the methoxy derivative.
引用
收藏
页码:O3686 / U1945
页数:11
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