Abstract: The unstable, oxygen-sensitive tunicate blood pigment (f)-tunichrome An-1 (la), which has been implicated in the 107-fold concentration of vanadium from the ocean in some tunicate species, has been synthesized in its underivatized form on a semipreparative scale; methods to isolate and purify the compound are also described. The synthesis employed tert-butyl carbamate (BOC) and tert-butyldimethylsilyl ethers (TBDMS) for N, O- ...
![methyl 3,4,5-tris[(tert-butyldimethylsilyl)oxy]benzoate Structure](https://image.chemsrc.com/caspic/478/121056-97-1.png)
