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Section:	Main.VITAMINS.Thiamine. Vitamin B1..Producers.Co.: DE. B.Patent.Claims Etc.Claim 1: 2-Me-4-Amino-5-AminoMe.Pyrimidine 1 ##STR8## Prepn..Process: 2-Me-4-Amino-5-Alkoxy.MePyrimidine (2 ##STR9##)+.Ammonia+Catalyst Reaction. Claim 2.: Inert, Organic Solvent. Claim 3:.Ammonia is used as Solvent. Claim 4.: Catalyst Lewis or Bronsted Acid.Claim 5: Lewis-Acid Oxide Element.Group IVA. Claim 6: Al2O3. Claim 7.: Compd Form. 2 Alkoxy=Methoxy.Patent Assignee
Code:	63852
Product:	DE. B
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