References
- Sulsky , R. and Demers , J. P. 1989 . Tet. Lett. , 30 in press.
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- Prepared from 6 in dichloromethane with one equivalent each of triethylamine and p-toluenesulfonyl chloride.
- Anwer , M. K. and Spatola , A. F. 1980 . Synthesis , 929