(Z)-4-(N-(4-Amino-2-methyl-5-pyrimidinylmethyl)formylamino)-3-(2-furoylthio)-3-pentenyl acetoxyacetat 10072-48-7 Acefurtiamina Acefurtiamine Acefurtiamine [INN] Acefurtiaminum S-Ester of Thio-2-furoic acid with N-((4-amino-2-methyl-5-pyrimidinyl)methyl)-N-(4-hydroxy-2-mercapto-1-methyl-1-butenyl)formamide O-glycolate acetate