Diazoketone from adenosine

Further syntheses of oxetanocin have been described. A branched-chain tetroside whose synthesis is covered in Chapter 14 was converted in standard steps to oxetanocin (17) together with its o(-anomer. Another sequence started from adenosine, and proceeded via a 3 -deoxy analogue to the diazoketone (18), which underwent the necessary ring contraction to give (19) on photolysis.An oxetanocin analogue derived from 3,5-anhydro-D-xylofuranose is mentioned in Chapters 20 and 22. 

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See also in sourсe #XX -- [ , , ]

See also in sourсe #XX -- [ , , ]

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