Compound of 1-acetyl-6-fluoro-2,2,4-trimethyl-1,2,3,4-tetrahydroquinoline

1. A compound of Formula (IX):

2. The compound of claim 1 , wherein the compound of Formula (IX) is in purified form.

3. The compound of claim 2 , wherein the purified form of the compound of Formula (IX) is obtained by precipitation.

4. The compound of claim 2 , wherein the purified form of the compound of Formula (IX) is obtained by crystallization.

5. The compound of claim 4 , wherein the crystallization uses an organic solvent.

6. The compound of claim 4 , wherein the crystallization uses a solvent immiscible with water.

7. The compound of claim 6 , wherein the solvent immiscible with water is an aliphatic hydrocarbon.

8. The compound of claim 7 , wherein the aliphatic hydrocarbon is heptane.

9. The compound of claim 7 , wherein the aliphatic hydrocarbon is hexane.