1-Hydroxyfuran derivative > 4-Oxopentanoate derivative
[#6:6]-[c;R1:5]1[c:4][c:3][c:2](-[#8:1]([H]))[o:7]1>>[#6:6]-[#6:5](=[O:7])-[#6:4]-[#6:3]-[#6:2](-[#8-])=[O:1]
[#6:6]-[c;R1:5]1[c:4][c:3][c:2](-[#8:1]([H]))[o:7]1
None
[#6:6]-[#6:5](=[O:7])-[#6:4]-[#6:3]-[#6:2](-[#8-])=[O:1]
None
