Process for preparing 5,6,7,8-tetrahydro-6-(L-erythro-1',2'-dihydroxypropyl)pterin
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United States of America Patent
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Jun 17, 1986
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N/A
app pub date -
Feb 21, 1985
filing date -
Feb 23, 1984
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Expired
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Abstract
A process for preparing tetrahydrobiopterin which is rich in the (6R)-form, which comprises hydrogenating L-erythrobiopterin in a basic medium in the presence of a platinum group catalyst. According to the process, tetrahydrobiopterin improved in (6R)/(6S) ratio can be easily obtained in the high yield.
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