An efficient and facile synthesis of (±)-geodin I corresponding to the spirocoumaranone part of Sch 202596 was accomplished in a convergent manner.The synthetic method features (i) a coupling reaction of the aryl aldehyde II with the aryl lithium generated in situ from the aryl bromide III to deliver the highly substituted diaryl methanol, and (ii) oxidative spirocyclization reaction of the benzophenone IV to construct the requisite spirocoumaranone skeleton [IV→(±)-I] as the key steps.The aromatic segments II and III were prepared from com. available Me 3,5-dihydroxybenzoate and 5-methylresorcinol, resp.