Yamauchi, Satoshi published the artcileStereoselective syntheses of cryptocarya diacetate and all its stereoisomers in optically pure forms, Synthetic Route of 99438-28-5, the publication is Bioscience, Biotechnology, and Biochemistry (2015), 79(1), 16-24, database is CAplus and MEDLINE.
Cryptocarya diacetate and each of its stereoisomers were stereoselectively synthesized in 8-16 steps. One of the three chiral carbons was converted from the chiral center of a yeast-reduction product. The other two chiral carbons were constructed by employing stereoselective allylation and syn-and anti-1,3-reductions The enantiomeric excesses of the synthesized cryptocarya diacetate and its stereoisomers were determined to be more than 99%ee using a chiral column.
Bioscience, Biotechnology, and Biochemistry published new progress about 99438-28-5. 99438-28-5 belongs to ethers-buliding-blocks, auxiliary class Chiral,Aliphatic cyclic hydrocarbon, name is (+)-B-Methoxydiisopinocampheylborane, and the molecular formula is C18H14BrNO5S2, Synthetic Route of 99438-28-5.
Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem