(4-Chloro-3-cyanophenyl)boronic acid

Pharmaceutical intermediate for synthesis

3-((2S,5S)-5-((3R,5R)-5-Methyl-3-((methylsulfonyl)oxy)-6-(((trifluoromethyl)sulfonyl)oxy)hept-6-en-1-yl)-4-methylenetetrahydrofuran-2-yl)propyl pivalate

pharmaceutical intermediate

(1R,3S,5R,6R,7S,11R,14S,15S,16S,17R,18S,19S,20Z,22R,25S,28S,31S,33R)-5-[(2S)-2,3-bis[[tert-butyl(dimethyl)silyl]oxy]propyl]-16,17,19-tris[[tert-butyl(dimethyl)silyl]oxy]-22-hydroxy-6-methoxy-33-methyl-27,34-dimethylidene-4,35,36,37,38-pentaoxahexacyclo[29.3.1.111,15.114,18.125,28.03,7]octatriacont-20-en-9-one

pharmaceutical intermediate for complex polyether synthesis