Report copyright - 02 Furanos Pirroles y Tiofenos - UNAMdepa.fquim.unam.mx/amyd/archivero/02FuranosPirrolesyTiofenos_2… · 3 OEt 2 O OO I. Reactivo de Lawesson J OO. 17 N S O O Cl NaH, DMF H K O Cl
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