SYNTHESES OF POTENTIAL SPIN PROBES FOR BIOMEMBRANES - TEMPO AND PROXYL NITROXIDES OF LITHOCHOLIC ACID

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SYNTHESES OF POTENTIAL SPIN PROBES FOR BIOMEMBRANES - TEMPO AND PROXYL NITROXIDES OF LITHOCHOLIC ACID

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Title: SYNTHESES OF POTENTIAL SPIN PROBES FOR BIOMEMBRANES - TEMPO AND PROXYL NITROXIDES OF LITHOCHOLIC ACID
Author: BANERJEE, S; TRIVEDI, GK
Abstract: The synthesis of a steroidal spin label 10 containing a tempo nitroxide group in the side chain of lithocholic acid 1 is reported. This is the first report of a tempo nitroxide in d steroidal side chain. The methodology involved d Wittig condensation between the steroidal phosphonium ylide 7 and tempone 9. The synthesis Of d proxyl nitroxide 16 with the proxyl group in the side chain of 1 is also described. A mild oxidation of 16 to the corresponding 3-keto spin label 17 in high yield is also achieved.
URI: http://dx.doi.org/10.1016/S0040-4020(01)92284-7
http://dspace.library.iitb.ac.in/xmlui/handle/10054/11400
http://hdl.handle.net/10054/11400
Date: 1992


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