@article{cironi_varela_2001,  title={Synthesis of 3,4-Di-O-benzyl-1-O-methyl-L-galactitol, a key precursor of the C33-C37 fragment of calyculins},  volume={12},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532001000500010},  DOI={10.1590/S0103-50532001000500010},  number={5},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Cironi, Pablo and Varela, Oscar},  year={2001},  month={Sep},  pages={667–672} }