https://sciforum.net/paper/3628
Furan ring transformation as a key stage in pyrrolopyrazine framework synthesis - SCIFORUM
Based on 1-(2-alkylfuryl-2)benzimidazoles new polycyclic fused pyrrolopyrazine derivatives were prepared
furan ringkey stagetransformationframeworksynthesis
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Compounds containing an unfused furan ring in t imports from Slovenia |2021
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https://wits.worldbank.org/trade/comtrade/en/country/All/year/2021/tradeflow/Exports/partner/ZAF/product/293219
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furan ringsouth africacompoundscontainingunfused