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The synthesis constitutes a formal total synthesis, since the research groups only prepared the known intermediate cobyric acid, whose chemical conversion to vitamin B 12 was previously reported
Published research context may discuss overlapping pathway activity, but such references are provided only for scientific context and do not represent therapeutic claims
At 2.5mg, rounding from 16.7 to 17 units gives you approximately 2.55mg instead of 2.5mg
PMCID PMC5826726
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