SAR of a series of anti-HSV-1 acridone derivatives, and a rational acridone-based design of a new anti-HSV-1 3H-benzo[b]pyrazolo[3,4-h]-1,6-naphthyridine series
摘要:
Herpes Simplex Virus (HSV) infections are among the most common human diseases. In this work, we assess the structural features and electronic properties of a series of ten 1-hydroxyacridone derivatives (1a-j) recently described as a new class of non-nucleoside inhibitors of Herpes Simplex Virus-1 (HSV-1). Based on these molecules, we applied rigid analogue and isosteric replacement approaches to design and synthesize nine new 3H-benzo[b]pyrazolo[3,4-h]-1,6-naphthyridine derivatives (2a-i). The biological and computational results of these new molecules were compared with 1-hydroxyacridones. An inhibitory profile was observed in 10-Cl substituted 3H-benzo[b]pyrazolo[3,4-h]-1,6-naphthyridine derivative (2f), which presents the same substituent at the analogous position of 1-hydroxyacridone derivative (1b). The structure-activity relationship (SAR) studies pointed out the 10-position next to nitrogen atom as important for the anti-HSV-1 profile in the pyrazolo-naphthyridine derivatives tested, which reinforced the promising profile for further experimental investigation. The most potent acridone and pyrazolo-naphthridine derivatives were also submitted to an in silico ADMET screening in order to determine their overall drug-score, which confirmed their potential antiviral profile. (c) 2007 Elsevier Ltd. All rights reserved.
Synthesis and antiviral activity of new 4-(phenylamino)/4-[(methylpyridin-2-yl)amino]-1-phenyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acids derivatives
作者:Alice Maria Rolim Bernardino、Alexandre Reis de Azevedo、Luiz Carlos da Silva Pinheiro、Júlio Cesar Borges、Vinícius Lucio Carvalho、Milene Dias Miranda、Marcelo Damião Ferreira de Meneses、Marcelo Nascimento、Davis Ferreira、Moacyr Alcoforado Rebello、Viveca Antonia Giongo Galvão da Silva、Izabel Christina Palmer Paixão de Frugulhetti
DOI:10.1007/s00044-007-9035-6
日期:2007.12
new ethyl4-(phenylamino)-1-phenyl-1 H -pyrazolo[3,4- b ]pyridine-5-carboxylates (2a–l) (52–82%) or new ethyl4-[(methylpyridin-2-yl)amino]-1-phenyl-1 H -pyrazolo[3,4- b ]pyridine-5-carboxylates (4a–c) (50–60%), respectively. Subsequent hydrolysis of the esters afforded the corresponding carboxylic acids (3a–l) (86–93%) and (5a–c) in high yield (80–93%). Inhibitory effects of 4-(phenylamino)/4-[(me
新的4-(苯氨基)-1-苯基-1 H- 吡唑并[3,4- b ]吡啶-4-羧酸 (3a-1) 衍生物和新的4-[(甲基吡啶-2-基)氨基] -1-苯基-1 H- 吡唑并[3,4- b ]吡啶-4-羧酸 (5a–c) 衍生物是通过有效的合成途径获得的。将4-氯-1-苯基-1 H- 吡唑并[3,4- b ]吡啶-5-羧酸乙酯 (1) 与适当的取代苯胺或氨基吡啶合并,得到所需的新乙基4-(苯基氨基)-1-苯基-1 H- 吡唑并[3,4- b ]吡啶-5-羧酸酯 (2a–l) (52–82%)或新的乙基4-[((甲基吡啶-2-基)氨基] -1-苯基-1 H- 吡唑并[3,4- b ]吡啶-5-羧酸酯 (4a– c) 分别为(50-60%)。酯的后续水解以高收率(80-93%)提供了相应的羧酸 (3a-1) (86-93%)和 (5a-c )。4-(苯基氨基)/ 4-[((甲基吡啶-2-基)氨基] -1-苯基-1