Your Location：Home >Products >small-molecule inhibitor >74220-43-2
Purity:99%
-
The invention provides a preparation met...
The invention provides a prepration proc...
21-acetoxy-pregna-4,9(11),16-triene-3,20-dinone
21-Acetoxy-16α,17α-dihydroxy-4,9(11)-pregnadien-3,20-dion
| Conditions | Yield |
|---|---|
|
21-acetoxy-pregna-4,9(11),16-triene-3,20-dinone;
With
formic acid;
In
acetone;
at -5 - 0 ℃;
for 0.0833333h;
With
potassium permanganate;
In
water; acetone;
at -5 - 0 ℃;
for 0.166667h;
|
96.7% |
|
21-acetoxy-pregna-4,9(11),16-triene-3,20-dinone;
With
formic acid;
In
acetone;
at -5 ℃;
for 0.0833333h;
With
potassium permanganate;
In
acetone;
at -5 ℃;
for 0.166667h;
|
96.7% |
|
With
osmium(VIII) oxide;
|
|
|
With
potassium permanganate;
|
21-Acetoxy-16α,17α-dihydroxy-4,9(11)-pregnadien-3,20-dion
triamcinolone diacetate
| Conditions | Yield |
|---|---|
|
Multi-step reaction with 5 steps
1: pyridine
2: aqueous HClO4; dioxane
3: potassium acetate; ethanol / Behandeln einer Loesung des Reaktionsprodukts in Pyridin mit Acetanhydrid
4: CHCl3; HF
5: mit Hilfe von Nocardia corallina
With
1,4-dioxane; pyridine; perchloric acid; ethanol; chloroform; hydrogen fluoride; potassium acetate;
|
21-acetoxy-pregna-4,9(11),16-triene-3,20-dinone
triamcinolone
9α-fluoro-11β,16α,17α,21-tetrahydroxypregn-4-ene-3,20-dione
16α,21-diacetoxy-9-fluoro-17-hydroxy-pregna-1,4-diene-3,11,20-trione
triamcinolone diacetate
CAS：112163-33-4
CAS：112-34-5
CAS：481-53-8
CAS：112163-33-4
