New bis-N9-(methylphenylmethyl)purine derivatives: synthesis and antitumor activity.

Abstract:

:A series of ortho-, meta- and para-bis-N9-(methylphenylmethyl)purine derivatives 4-15 were obtained by two-step synthesis from various substituted chloropurines with alpha,alpha'-dichloroxylenes. These bis-N9-(methylphenylmethyl)purines 4-15 were evaluated for the primary cytotoxic activity against a panel of NCI-H460 (lung), MCF-7 (breast) and SF-268 (CNS) cancer cell lines. The 'active' compounds which reduced growth of cancer cells to ca. 32% or less, have been evaluated in a full panel of 60 human cancer cell lines over a 5-log dose range at the National Cancer Institute, Bethesda, MD. In this series, the most activity is correlated to the compounds derived from the 2,6-dichloropurines such as bis-9-[o-(methylphenylmethyl)]2,6-dichloropurine (5), bis-9-[m-(methylphenylmethyl)]2,6-dichloropurine (8), and bis-9-[p-(methylphenylmethyl)]2,6-dichloropurine (11). In particular compound 8 exhibited high sensitivity in leukemia cell lines and compounds 5, 8 and 11 exhibited consistent high sensitivity in many breast cancer cell lines. Compound 11 was the most potent in this series and exhibited GI(50)<0.01 microM sensitivity against non-small lung cancer EKVX, colon cancer HT-29, melanoma SK-MEL-28, renal cancer RXF 393, prostate cancer DU-145 and several breast cancer HS 578T and BT-549 cell lines.

journal_name

Eur J Med Chem

authors

Kode N,Chen L,Murthy D,Adewumi D,Phadtare S

doi

10.1016/j.ejmech.2006.10.017

subject

Has Abstract

pub_date

2007-03-01 00:00:00

pages

327-33

issue

3

eissn

0223-5234

issn

1768-3254

pii

S0223-5234(06)00385-0

journal_volume

42

pub_type

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