HuagongsheHuagongshe Chemistry Print Report · For research reference only
Hydrofluoric Acid → 17-Ethyl-1-hydroxy-12-[2'-(4"-hydroxy-3"-methoxycyclohexyl)-1'-methylvinyl]-14-t-butyl-dimethylsilyloxy-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetraone
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Hydrofluoric Acid | HCID 14917 | — |
| Reactant | 17-Ethyl-1-hydroxy-12-[2'-(4"-t-butyldimethylsilyloxy-3"-methoxycyclohexyl)-1'-methylvinyl]-14-t-butyldimethylsilyloxy-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetraone | HCID 57042423 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | 17-Ethyl-1-hydroxy-12-[2'-(4"-hydroxy-3"-methoxycyclohexyl)-1'-methylvinyl]-14-t-butyl-dimethylsilyloxy-23,25-dimethoxy-13,19,21,27-tetramethyl-11,28-dioxa-4-azatricyclo[22.3.1.04,9]octacos-18-ene-2,3,10,16-tetraone | HCID 57246778 | 67.6% |
Reaction Steps
The product from Step 4A (500 mg) was dissolved in acetonitrile (20 ml) and 100 ml of hydrogen fluoride (48%) was added. The reaction was stirred for 20 minutes at room temperature, quenched with saturated sodium bicarbonate, then extracted with ethyl acetate. Removal of solvent in vacuo followed by chromatography on silica gel (80% ethyl acetate/hexane) gave 300 mg of product (Mass, 1H and 13C NMR data consistent with the title compound.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US05880280 |
| Source dataset | uspto-grants-1999_03 |
| ORD ID | ord-6e1a1ad95d644b6d8fffff74ac92a46c |
| Source note | uspto-grants-1999_03 |