doi: 10.1016/j.steroids.2009.04.004.
Epub 2009 Apr 18.
Synthesis of spiroannulated oligopyrrole macrocycles derived from lithocholic acid
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- PMID: 19379764
- DOI: 10.1016/j.steroids.2009.04.004
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Synthesis of spiroannulated oligopyrrole macrocycles derived from lithocholic acid
Steroids.
2009 Aug.
Abstract
Two new steroidal spiroannulated calix[4]pyrroles 5 and 10, derived from bile acids (lithocholate), were prepared by the acid catalyzed condensation of methyl-3,3-bis(pyrrol-2-yl)-5beta-cholan-24-oate 3 with carbonyl compounds and with 2,2'-propane-2,2-diylbis(1H-pyrrole), respectively. The new compounds were fully characterized by physicochemical methods.
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