Tetrahedron p. 5141 - 5150 (1989)
Update date:2022-08-05
Topics:
Dondoni, Alessandro
Fantin, Giancarlo
Fogagnolo, Marco
Pedrini, Paola
2-Lithiothiazole (2-LTT) (1a) and 2-thiazolylmethylenetriphenylphosphorane (2-TMP) (1b) are employed as aldehyde equivalents in a new concise synthesis of 4-O-tert-butyldimethylsilyl L-(-)-rhodinose (2b) from (S)-ethyl lactate.The key intermediates in the synthesis are two differentially protected hydroxyl aldehydes, i.e. the 4-deoxy-L-threose derivative 3b and the (S,S)-4,5-dihydroxyhexanal derivative 4b which are obtained in high yield starting from O-benzyloxymethyl (S)-ethyl lactate (5).The selective C5 hydroxyl deprotection in 4b leads to the TBS-protected rhodinose 2b in the pyranose form.A complete (1)H and (13)C NMR analysis of 2b is provided.
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Doi:10.1007/BF01168091
(1989)Doi:10.1246/bcsj.63.156
(1990)Doi:10.1002/anie.201004461
(2011)Doi:10.1016/j.tetlet.2010.11.132
(2011)Doi:10.1021/acs.jnatprod.7b00954
(2018)Doi:10.1016/S0040-4039(01)93462-8
(1989)