Abstract:
:Several new N-phenyl-1H-indazole-1-carboxamides 1c-h and 4l,m were prepared by reacting phenyl isocyanate derivatives 3a,b with 3-amino-1H-indazole derivatives 2c,e,g or 1H-indazole 2l respectively. Chemical transformations of compounds 1a,b and 1g,h gave 3-acetamido-N-phenyl-1H-indazole-1-carboxamide derivatives 5a,b, and 3,5-diamino-N-phenyl-1H-indazole-1-carboxamide derivatives 4i,j respectively. Finally, 3,5-diacetamido-N-phenyl-1H-indazole-1-carboxamide derivatives 6a,b were prepared by acetylation of 4i,j. Some of synthesized compounds were evaluated for their in vitro antiproliferative activity against the full NCI tumor cell lines panel derived from nine clinically isolated cancer types (leukemia, non-small cell lung, colon, CNS, melanoma, ovarian, renal, prostate and breast). Compound 1c, the most active of the series, was able to inhibit cell growth showing GI(50) values in the 0.041-33.6 μM range, mean GI(50) 1.90 μM, being very effective against colon and melanoma cell lines. Cell cycle analysis in K562 cells showed that 1c causes a marked increase of cells in G0-G1 phase. Moreover, it increases the ratio between hypophosphorylated pRb and total pRb.
journal_name
Eur J Med Chemjournal_title
European journal of medicinal chemistryauthors
Maggio B,Raimondi MV,Raffa D,Plescia F,Cascioferro S,Plescia S,Tolomeo M,Di Cristina A,Pipitone RM,Grimaudo S,Daidone Gdoi
10.1016/j.ejmech.2010.10.032subject
Has Abstractpub_date
2011-01-01 00:00:00pages
168-74issue
1eissn
0223-5234issn
1768-3254pii
S0223-5234(10)00772-5journal_volume
46pub_type
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