Stereo- and regioselective synthesis of novel β-lactam tethered spiropyrrolizidine/pyrrolothiazole heterocyclic hybrids
作者:Rajesh Raju、Raghavachary Raghunathan、Natarajan Arumugam、Abdulrahman I. Almansour、Raju Suresh Kumar、Saied M. Soliman
DOI:10.1016/j.tet.2021.132026
日期:2021.3
A regio and diastereoselective synthesis of library of structurally intriguing novel hybrid heterocycles comprising spiropyrrolizidines/pyrrolothiazoles, oxindole/acenaphthenone and β-lactam moieties have been synthesized in good yields. The hitherto unexplored 2-((1-(4-methoxyphenyl)-4-oxo-3-phenylazetidin-2-yl)methylene) malononitriles were used as the dipolarophiles, while the dipoles were derived
Discovery of 2-Arylthiazolidine-4-carboxylic Acid Amides as a New Class of Cytotoxic Agents for Prostate Cancer
作者:Veeresa Gududuru、Eunju Hurh、James T. Dalton、Duane D. Miller
DOI:10.1021/jm049208b
日期:2005.4.1
To improve the selectivity and antiproliferative activity of previously reported serine amide phosphates (SAPs), we designed a new series of 4-thiazolidinone amides, in which the 4-thiazolidinone moiety was introduced as a phosphate mimic. However, these 4-thiazolidinone derivatives demonstrated less cytotoxicity in prostate cancer cells despite improved selectivity over RH7777 cells. To further optimize the thiazolidinone analogues in terms of cytotoxicity and selectivity, we made closely related structural modifications, which led us to the discovery of a new class of 2-arylthiazolidine-4-carboxylic acid amides. These compounds were potent cytotoxic agents with IC50 values in the low micromolar concentration range and demonstrated enhanced selectivity in receptor-negative cells compared to SAPs and 4-thiazolidinone amides.