Yang Z, Cui YX, Wong HNC, Wang RJ, Mak TCW, Chang HM, Lee CM. Anodic oxidation as a synthetic expedient to naphthoquinone and anthraquinone ketals. Tetrahedron. 1992;(16):3293-3302.

Yang Z, Wong HNC, Hon PM, Chang HM, Lee CM. A novel synthesis of the dibenz[b,f]oxepin ring system: 10,11-Dihydro-11-hydroxydibenz[b,f]oxepin-10(11H)-one. Journal of Organic Chemistry. 1992;(14):4033-4034.

Wong HNC, Niu CR, Yang Z, Hon PM, Chang HM, Lee CM. Regiospecific introduction of carbon-3 formyl group to 2,5-dialkyl-7-methoxy-benzo[b] furans : Synthesis of potential ligands for adenosine A1 receptors. Tetrahedron. 1992;(47):10339-10344.

Yang Z, Hon PM, Chui KY, Xu ZL, Chang HM, Lee CM, Cui YX, Wong HNC, Poon CD, Fung BM. Naturally occurring benzofuran: isolation, structure elucidation and total synthesis of 5-(3-hydroxypropyl)-7-methoxy-2-(3′-methoxy-4′-hydroxyphenyl)-3-benzo[b]furancarbaldehyde, a novel adenosine A1 receptor ligand isolated from salvia mil. Tetrahedron Letters. 1991;(18):2061-2064.