Patent ID: 11925650
Assignee: NATIONAL YANG MING CHIAO TUNG UNIVERSITY
Field: Pharmaceuticals (Chemistry)
Classification: CPC A  C | IPC A  C

Claim 10:
11. The method of claim 9, wherein X1 of the compound (VI) is NH and the compound (VI) is obtained by:
(a) under the present of SOCl2, reacting a compound (VII) of following structure, with a compound (VIII) of following structure, to obtain a compound (IX) of following structure;, (b) reacting the compound (IX) with SnCl2 to obtain a compound (X) of following structure;, (c) reacting the compound (X) with DEGMME to obtain the compound (VI);
wherein
X2 is CH;
X3 is —CHCH;
R1 is H, CH3 or Cl; and
R2 is,