Claims
- 1. A process for preparing a pyridinemethanol compound represented by the formula (II):
- 2. The process according to claim 1, wherein said potassium pyridinecarboxylate represented by the formula (I) is prepared by reacting a pyridinecarbonitrile compound represented by the formula (III):
- 3. A process for preparing mirtazapine comprising adding a pyridinemethanol compound represented by the formula (II):
- 4. The process according to claim 3, wherein the pyridinemethanol compound represented by the formula (II) is added in divided portions to sulfuric acid.
- 5. The process according to claim 3 or 4, wherein the formed mirtazapine is crystallized with toluene and heptane.
Priority Claims (1)
Number |
Date |
Country |
Kind |
11-353514 |
Dec 1999 |
JP |
|
Parent Case Info
[0001] This application is a continuation-in-part application of PCT/JP00/05384, the entire contents of which are incorporated herein by reference.
Divisions (1)
|
Number |
Date |
Country |
Parent |
09706803 |
Nov 2000 |
US |
Child |
09981919 |
Oct 2001 |
US |
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
PCT/JP00/05384 |
Aug 2000 |
US |
Child |
09706803 |
Nov 2000 |
US |