Bisindolylmaleimides with Large Stokes Shift and Long-Lasting Chemiluminescence Properties
摘要:
Various bisindolylmaleimides have fluorescence emission maxima wavelengths longer than 500 nm, large Stokes shifts longer than 200 nm, different fluorescence emission wavelengths at an excitation wavelength of 365 nm, and a long-lasting chemiluminescence. The expansion of the pi-conjugation, the pi-bond electronic structure, and oxidation of the CC bond at the 2,3-position of the maleimide moiety are crucial for producing these fluorescence and chemiluminescence properties.
Coupling reactions of indole-3-acetic acid derivatives. Synthesis of arcyriaflavin A
作者:Jan Bergman、Eva Koch、Benjamin Pelcman
DOI:10.1039/b004029k
日期:——
The bisindolesuccinic acid methyl ester 10 was obtained by an iodine-promoted coupling of the dianion 9. The diester was converted to the N-benzylimide 12, which was oxidatively cyclized to the indolo[2,3-a]pyrrolo[3,4-c]carbazole 15. The diester 10 could be directly transformed to the known indolocarbazole diester 27via acid-induced intramolecular cyclization in TFA. The same methodology gave arcyriaflavin A 4 from the succinimide 18b.
Inhibitors of protein kinase C. 1. 2,3-bisarylmaleimides
作者:Peter D. Davis、Christopher H. Hill、Geoffrey Lawton、John S. Nixon、Sandra E. Wilkinson、Steven A. Hurst、Elizabeth Keech、Susan E. Turner
DOI:10.1021/jm00079a024
日期:1992.1
The design and synthesis of a series of novel inhibitors of protein kinase C (PKC) is described. These 2,3-bisarylznaleimides were derived from the structural lead provided by the indolocarbazoles, staurosporine and K252a. Optimum activity required the imide NH, both carbonyl groups, and the olefinic bond of the maleimide ring. 2,3-Bisindolylmaleimides were the most active, and the potency of these was improved by a chloro substituent at the 5-position of one indole ring (compound 28, IC50 0.11-mu-M). In a series of (phenylindolyl)maleimides, nitro compound 74 was most active (IC50 0.67-mu-M). Naphthalene 19 and benzothiophene 21 showed greater than 100-fold selectivity for inhibition of PKC over the closely related cAMP-dependent protein kinase (PKA).
INDOLE DERIVATIVES WITH ANTIVIRAL ACTIVITY
申请人:THE WELLCOME FOUNDATION LIMITED
公开号:EP0630241A1
公开(公告)日:1994-12-28
[EN] INDOLE DERIVATIVES WITH ANTIVIRAL ACTIVITY
申请人:——
公开号:WO1993018765A1
公开(公告)日:1993-09-30
[EN] The present invention relates to certain indole derivatives, salts, esters and physiologically functional derivatives thereof, to their use in medical therapy and in particular to their use for the manufacture of a medicament for the treatment or prophylaxis of at least one viral infection, for example, herpes virus, retrovirus, hepatitis B virus, coxsackie virus and hepatitis C virus infections. [FR] La présente invention se rapporte à certains dérivés d'indole et à des sels, des esters et des dérivés à activité physiologique de ces composés; l'invention se rapporte également à leur utilisation thérapeutique et en particulier à leur utilisation dans la fabrication d'un médicament destiné au traitement ou à la prophylaxie d'au moins une infection virale telle que l'infection par le virus de l'herpès, un rétrovirus, le virus de l'hépatite B, le virus coxsackie et le virus de l'hépatite C.
Regiocontrolled Synthesis of the Antitumor Antibiotic AT2433-A1
作者:John D. Chisholm、David L. Van Vranken
DOI:10.1021/jo000911r
日期:2000.11.1
The indolo[2,3-a]carbazole glycosides are potent antitumor antibiotics currently undergoing clinical trials for the treatment of numerous types of cancer. AT2433-A1 is the most complex member of this family of compounds possessing a unique disaccharide with a sensitive aminodeoxysugar and an unsymmetric aglycon. The synthesis of this naturalproduct requires a method for glycosylation that sets the