Practical synthesis of unnatural (+)-physostigmine and carbamate analoguesQIAN-SHENG YU; BROSSI, A.Heterocycles (Sendai). 1988, Vol 27, Num 3, pp 745-750, issn 0385-5414Article

Reactions of (-)-physostigmine and (-)-N-methylphysostigmine in refluxing butanol and at high temperature: facile preparation of (-)-eserolineQIAN-SHENG YU; SCHÖNENBERGER, B; BROSSI, A et al.Heterocycles (Sendai). 1987, Vol 26, Num 5, pp 1271-1275, issn 0385-5414Article

Synthesis of (±)-physovenine and (±)-7-bromophysovenine from intermediates of the synthesis of physostigminesYI-LIN LUO; QIAN-SHENG YU; CHRISEY, L et al.Heterocycles (Sendai). 1990, Vol 31, Num 2, pp 283-287, issn 0385-5414Article

Geneserine and geneseroline revisited: acid-base catalyzed equilibria of heexahydropyrrolo-[2,3-b]-indole N-oxides with hexahydro-1,2-oxazino-[5,6-b]-indolesQIAN-SHENG YU; YEH, H. J. C; BROSSI, A et al.Journal of natural products (Print). 1989, Vol 52, Num 2, pp 332-336, issn 0163-3864Article

S-configuration of (+)-primaquine by X-ray analysis of the urea obtained with R-(+)-1-phenylethylisocyanateQIAN-SHENG YU; BROSSI, A; FLIPPEN-ANDERSON, J. L et al.FEBS letters. 1987, Vol 221, Num 2, pp 325-326, issn 0014-5793Article

SYNTHESIS AND PHOTOOXIDATION OF THE CONDENSATION PRODUCTS OF TRYPTAMINE AND CATECHOL DERIVATIVES. AN APPROACH TO THE SYNTHESIS OF A PROBABLE PRECURSOR OF KOUMINECHU TSIN LIU; SHIH CHERNG SUN; QIAN SHENG YU et al.1983; J. ORG. CHEM.; ISSN 0022-3263; USA; DA. 1983; VOL. 48; NO 1; PP. 44-47; BIBL. 14 REF.Article

Synthesis and anticholinesterase activity of (―)-N¹-norphysostigmine, (―)-eseramine, and other N(1)-substituted analogues of (―)-physostigmineQIAN-SHENG YU; ATACK, J. R; RAPOPORT, S. I et al.Journal of medicinal chemistry (Print). 1988, Vol 31, Num 12, pp 2297-2300, issn 0022-2623Article

Progress towards a practical total synthesis of Calabar alkaloids: total synthesis of (-)-esermethole and (-)-physovenol methyl ether from (3S)-1,3-dimethyl-3-carboxymethyl-5-methoxyoxindoleQIAN-SHENG YU; WEI-MING LUO; YI-QUN LI et al.Heterocycles (Sendai). 1993, Vol 36, Num 6, pp 1279-1285, issn 0385-5414Article

Carbamate analogues of (-)-physostigmine: in vivo inhibition of acetyl- and butyrylcholinesteraseQIAN-SHENG YU; ATACK, J. R; RAPOPORT, S. I et al.FEBS letters. 1988, Vol 234, Num 1, pp 127-130, issn 0014-5793Article

(S)-1,3-dimethyl-3-hydroxy-5-methoxyoxindole: by-product in the synthesis of physostigmineQIAN-SHENG YU; YI-QUN LI; WEI-MING LUO et al.Heterocycles (Sendai). 1993, Vol 36, Num 8, pp 1791-1794, issn 0385-5414Article

Comparative inhibitory effects of various physostigmine analogs against acetyl- and butyrylcholinesterasesATACK, J. R; QIAN-SHENG YU; SONCRANT, T. T et al.The Journal of pharmacology and experimental therapeutics. 1989, Vol 249, Num 1, pp 194-202, issn 0022-3565Article

C-(11)-epi-deoxyarteether: formation and structureDOMINGUEZ GERPE, L; YEH, H. J. C; QIAN-SHENG YU et al.Heterocycles (Sendai). 1988, Vol 27, Num 4, pp 897-901, issn 0385-5414Article

Structure of an ether dimer of deoxydihydroqinghaosu, a potential metabolite of the antimalarial arteetherFLIPPEN-ANDERSON, J. L; GEORGE, C; GILARDI, R et al.Acta crystallographica. Section C, Crystal structure communications. 1989, Vol 45, Num 2, pp 292-294, issn 0108-2701Article

73. Physovenines : efficient synthesis of (-)- and (+)-physovenine and synthesis of carbamate analogues of (-)-physoveine. Anticholinesterase activity and analgesic properties of optically active physoveninesQIAN-SHENG YU; BRZOSTOWSKA, M; CHRISEY, L et al.Helvetica chimica acta. 1991, Vol 74, Num 4, pp 761-766, issn 0018-019XArticle