Draw the structures of the starting material and the four missing intermediates. OH allyl bromide, K2CO3 acetone, reflux H2O2, H2SO4, MeOH (97%) MeO OMe (99%) ÓMe Оз. Dсм, МеОн, -78°С then Me,S DMF, 190 °C BnBr, K2CO3 (93%) acetone (78%) (99%) Br- OBn NBS, DCM (95%) Meo OMe OMe

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