Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.In a patent， Safety of 5-(Benzyloxy)-1H-indole, Which mentioned a new discovery about 1215-59-4
A highly enantioselective [4 + 2] annulation of 2-ylideneoxindole with malononitrile has been accomplished by cinchonine catalysis under mild conditions. The corresponding enantiomerically enriched 4H-pyrano[3,2-b]indoles were generated in moderate to high yields (up to 94%) with excellent enantioselectivities (up to 98% ee). To explain the stereoselectivity of the organocatalytic Michael-ammonization cascade, we also carried out the control experiments and proposed plausible transition-state models for the catalytic cycle based on the observed stereochemistry of the products. In addition, some of the products showed moderate antibacterial activity against S. aureus and S. epidermidis in vitro, which might be considered as a potential clue for the discovery of new antimicrobial agents.
Because enzymes can increase reaction rates by enormous factors and tend to be very specific, Safety of 5-(Benzyloxy)-1H-indole, typically producing only a single product in quantitative yield, they are the focus of active research.you can also check out more blogs about 1215-59-4
Reference：
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles