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. Author manuscript; available in PMC: 2014 Feb 20.
Published in final edited form as: Bioconjug Chem. 2013 Jan 16;24(2):215–223. doi: 10.1021/bc3005073

Table 2.

Synthesis of activated acceptor enol ethers.

graphic file with name nihms438284t7.jpg
heterocycle acceptor
code		 product %
yield
phthal. Pht graphic file with name nihms438284t8.jpg 74
barbituric acid BA graphic file with name nihms438284t9.jpg 61
benzothiophene SO graphic file with name nihms438284t10.jpg 73
thiobarbituric acid TBA graphic file with name nihms438284t11.jpg 55
pyrazolidine Pz graphic file with name nihms438284t12.jpg 70