(4aS,5S,6S,7aR)-2-Oxo-6-(tetrahydro-pyran-2-yloxy)-octahydro-cyclopenta[b]pyran-5-carbaldehyde 、
methyl <3,3,4,4,5,5,6,6-d8>-6-methoxycarbonyl-2-oxohexane phosphonate 在
sodium hydride 作用下,
生成 (+/-)-<16,16,17,17,18,18,19,19-D8>-13,14-dehydro-9α-hydroxy-19-methoxycarbonyl-15-oxo-11α-(tetrahydro-2H-pyran-2-yloxy)-2,3,4,5,20-pentanor-(13E)-prostenoic acid 1,9-lactone