Abstract:
:Z-1,1-Dichloro-2,3-diphenylcyclopropane (1) is an effective anti-breast cancer agent in rodents and in cell culture. We recently determined that 1 inhibits tubulin assembly in vitro and causes microtubule loss in breast cancer cells, leading to accumulation in the G2/M portion of the cell cycle. Aryl ring-halogenated, methoxylated and benzyloxylated derivatives of 1, as well as its E-isomer and the dichlorocyclopropyl derivative of diethylstilbestrol (DES), were synthesized and tested for their ability to inhibit, the assembly of tubulin into microtubules. Including 1, 17 cyclopropyl compounds were tested. One (Z-1,1-dichloro-2-(4-methoxyphenyl)-3-phenylcyclopropane (12)) was found to be more active than 1. In addition, E-1,1-dichlorocyclopropylDES (17) was more potent than DES. The E-isomer of 1 (16) was inactive. The cytostatic activities of the compounds against MCF-7 and MDA-MB231 human breast cancer cells, and their abilities to perturb microtubules in MCF-7 cells were also evaluated. Z-Dichloro-2-(4-fluorophenyl)-3-phenylcyclopropane (5), Z-1,1-dichloro-2-(4-fluorophenyl)-3-(4-methoxyphenyl)cyclopropane (11), and Z-1,1-dichloro-2-(4-methoxyphenyl)-3-phenylcyclopropane (12) were more potent than 1 against the breast cancer cells.
journal_name
Bioorg Med Chemjournal_title
Bioorganic & medicinal chemistryauthors
Jonnalagadda SS,ter Haar E,Hamel E,Lin CM,Magarian RA,Day BWdoi
10.1016/s0968-0896(97)00014-xsubject
Has Abstractpub_date
1997-04-01 00:00:00pages
715-22issue
4eissn
0968-0896issn
1464-3391pii
S0968-0896(97)00014-Xjournal_volume
5pub_type
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