1000669-90-8
(1R,7S,8S,9S)-7-acetoxy-9-ethynyl-9-methyl-11-oxo-10-oxa-tricyclo[6.3.2.01,7]tridec-3-ene-4-carboxylic acid methyl ester
+
128836-43-1
3-iodo-2-methylprop-2-enoic acid
→
~62%
82508-31-4
土槿皮乙酸
457622-31-0
methyl (3R,4R,4aS,7S,9aR)-4a-hydroxy-3-((E)-3-hydroxyprop-1-en-1-yl)-3-methyl-1-oxooctahydro-1H-4,9a-ethanocyclohepta[c]pyran-7-carboxylate
→
82508-31-4
土槿皮乙酸
457622-30-9
methyl (3R,4R,4aS,7S,9aR)-4a-hydroxy-3-methyl-1-oxo-3-((E)-3-oxoprop-1-en-1-yl)octahydro-1H-4,9a-ethanocyclohepta[c]pyran-7-carboxylate
→
82508-31-4
土槿皮乙酸
457622-33-2
methyl (3S,4R,4aS,7S,9aR)-4a-acetoxy-3-formyl-3-methyl-1-oxooctahydro-1H-4,9a-ethanocyclohepta[c]pyran-7-carboxylate
→
82508-31-4
土槿皮乙酸
457622-27-4
methyl (3S,4R,4aS,7S,9aR)-3-formyl-4a-hydroxy-3-methyl-1-oxooctahydro-1H-4,9a-ethanocyclohepta[c]pyran-7-carboxylate
→
82508-31-4
土槿皮乙酸