上游原料
2,4-dihydroxybenzaldehyde5-(chloromethyl)-1,3-benzodioxole(3S,5R)-1-[(2S,4R)-5-[(3aS,8aR)-2,2-dimethyl-8,8a-dihydro-2H-indeno[1,2-d][1,3]oxazol-3(3aH)-yl]-4-benzyl-2-hydroxy-5-oxopentyl]-3,5-dibenzyl-2-pyrrolidinone2-hydroxy-2-(2-methylphenyl)acetic acid2-[5-(1,3-benzodioxol-5-ylmethoxy)-2-cyanophenoxy]-2-(2-methylphenyl)acetic acid2,4-dihydroxybenzaldehyde5-(chloromethyl)-1,3-benzodioxole4-(1,3-benzodioxol-5-ylmethoxy)-2-hydroxybenzaldehyde4-(1,3-benzodioxol-5-ylmethoxy)-2-hydroxybenzaldehyde oxime5-(1,3-benzodioxol-5-ylmethoxy)-2-cyanophenyl acetate4-(1,3-benzodioxol-5-ylmethoxy)-2-hydroxybenzonitrile2-bromo-2-(2-methylphenyl)acetic acid(2R)-2-bromo-2-(2-methylphenyl)ethanoic acid