An alternative construction of A-B-D ring-system of erythrinan and homoerythrinan alkaloids by TiCl4-mediated tandem semipinacol/intramolecular Schmidt reaction of α-siloxyepoxyazide was addressed and the unusual epo...
Project suported by the National Natural Science Foundation of China (Nos. 20372028, 20472026, 20525206, 20021001) and the Specialized Research Fund for the Doctoral Program in Higher Education Institutions of the Ministry of Education of China.
A readily available β-sulfonamide alcohol-titanium complex was found to be effective on promoting the asymmetric addition reaction of an alkynylzinc reagent to unactivated simple ketones under very mild conditions. A...
Project supported by the National Natural Science Foundation of China (Nos. 20472025 and 20021001).
This paper described a concise construction of (-)-EGCG (1f) (with an overall yield of 20% for seven steps based on the starting cinnamyl alcohol derivative 3), featuring asymmetric dihydroxylation (ADH), intr...
supported by the National Natural Science Foundation of China(No.20472025 and No.20021001).
The compound sulforaphane (SFN, 1) has been synthesized via a facile and green synthetic strategy based on the modification of previous methods. Because of its high bioactivities and rare content in nature, the pres...
The chemical investigation of Ixeris polycephala afforded two new norsesquiterpenes, named as ixerols A and B (1-2). Their structures were established based on spectroscopic methods including 2D NMR experiments. The...
Project supported by the National Natural Science Foundation of China (Nos, 29525205, 30271488, 20021001 and 203900501 ).
The fully substituted cyclopentenedione core of madindoline A (1) and B (2) as potent and selective inhibitor of IL-6 has been synthesized efficiently. The quaternary carbon center C-2' was constructed on the bas...
Project supported by the National Natural Science Foundation of China (Nos. 29925205, 30271488, 20021001 and 203900501).
The easily prepared and recoverable chiral N-sulfonylated fl-amino alcohol 2 in combination with Ti(OPr-i)4 was found to be an effective chiral catalyst for the enantioselective addition of alkynylzinc to ketones, w...