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|Title:||SYNTHESES OF POTENTIAL SPIN PROBES FOR BIOMEMBRANES - TEMPO AND PROXYL NITROXIDES OF LITHOCHOLIC ACID|
|Publisher:||PERGAMON-ELSEVIER SCIENCE LTD|
|Citation:||TETRAHEDRON, 48(45), 9939-9950|
|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.|
|Appears in Collections:||Article|
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