Synthetic communications

The synthesis of novel chiral cholic acid-based molecular clefts containing unsymmetrically disubstituted urea unit

QM Mu, CH Xue, QH Zhang, SH Chen

Index: Mu, Qi Ming; Xue, Cui Hua; Zhang, Qing Hua; Chen, Shu Hua Synthetic Communications, 2003 , vol. 33, # 17 p. 3055 - 3061

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Citation Number: 2

Abstract

Abstract A novel type of chiral molecular clefts has been designed and synthesized by linking an unsymmetrically disubstituted urea to methyl deoxycholate via a carbonate chain. The structures of these new receptors 3a–d were confirmed by 1H NMR, IR, MS spectra, and Elemental analysis.