Dinh, Tam Q. published the artcileA Convergent Total Synthesis of the Multidrug Resistance-Reversing Agent Hapalosin, Recommanded Product: (+)-B-Methoxydiisopinocampheylborane, the publication is Journal of Organic Chemistry (1995), 60(25), 8118-19, database is CAplus.
The novel cyclic depsipeptide hapalosin (I) was recently isolated and has shown great potential for reversing multidrug resistance in vitro. The first total synthesis of hapalosin has been achieved in 18 steps. Two diastereoselective Brown allylborations established the absolute stereochem. of 3 of the 5 stereocenters in hapalosin. After convergence of two fragments, the pentultimate step was a macrolactonization under modified Mukaiyama conditions.
Journal of Organic Chemistry 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 C21H37BO, Recommanded Product: (+)-B-Methoxydiisopinocampheylborane.
Referemce:
https://en.wikipedia.org/wiki/Ether,
Ether | (C2H5)2O – PubChem