上游原料
2-methyl-3-butyn-2-ol; 3-Methyl butynol4-bromophenoltrifluoroacetic anhydride1,1-dimethyl-2-propynyl 2,2,2-trifluoroacetate1-bromo-4-[(1,1-dimethyl-2-propynyl)oxy]benzene; 4-bromophenyl 1,1-dimethyl-2-propynyl ether6-bromo-2,2-dimethyl-2H-chromenelithium 2,2-dimethyl-2H-chromene-6-sulfinate2,2-dimethyl-2H-chromene-6-sulfonyl chlorideN,N-diisobutyl-2,2-dimethyl-2H-chromene-6-sulfonamide(1aS,7bS)-N,N-diisobutyl-2,2-dimethyl-1a,7b-dihydro-2H-oxireno[2,3-c]chromene-6-sulfonamide(3S,4R)-4-amino-3-hydroxy-N,N-diisobutyl-2,2-dimethyl-3,4-dihydro-2H-chromene-6-sulfonamideN-(4-chlorophenyl)-N'-cyanothiourea
