212. 2-Mercaptoglyoxalines. Part VII. The preparation of Di-C-substituted 2-mercaptoglyoxalines from aspartic acid
作者:Alexander Lawson
DOI:10.1039/jr9530001046
日期:——
LEPSCHY J.; HOEFLE G.; WILSCHOWITZ L.; STEGLICH W., J. LIEBIGS ANN. CHEM. <JLAC-BF>, 1974, NO 11, 1753-1762
作者:LEPSCHY J.、 HOEFLE G.、 WILSCHOWITZ L.、 STEGLICH W.
DOI:——
日期:——
Synthesis of 4-Amino-2(5<i>H</i>)-furanones through Intra- and Intermolecular Nitrile Addition of Ester Enolates. Construction of Carbon Framework of an Antitumor Antibiotic Basidalin
ester group, deprotection, olefin isomerization and lactonization all in a single operation. The other is base-induced ringclosure of α-acyloxy nitriles. The two methods are applied to construction of the carbonframework of an antitumor antibiotic basidalin.