12.11.2022 в 05:09 |
<a href=https://bestcialis20mg.com/>online cialis pharmacy</a> The filtrate was concentrated under reduced pressure and was the resulting residue was purified by silica gel column chromatography hexanes and a 3 1 mixture of ethyl acetate ethanol to afford 4 2 1 tert butyldimethylsilyl oxy methyl cyclopropyl ethyl 2 isopropylpyridin 3 amine Int 38k