Syntheses of Althiomycin Analogs in Relation to Antibacterial Activities
作者:Kaoru Inami、Tetsuo Shiba
DOI:10.1246/bcsj.59.2185
日期:1986.7
Four analogs of an antibiotic althiomycin were synthesized in order to clarify the structure-activity relationships, especially with regard to two asymmetric centers and the aldoxime configuration. The antibiotic activity of de(hydroxymethyl) analog is comparable to that of the original antibiotic for Gram-positive bacteria.
Synthetic Studies of Bacitracin. VI. Synthesis of Unprotected Thiazoline Peptides
作者:Yoshihiro Hirotsu、Tetsuo Shiba、Takeo Kaneko
DOI:10.1246/bcsj.43.1564
日期:1970.5
For a total synthesis of bacitracian A, a synthetic method to secure unprotected thiazoline peptides must be established. 2-Aminomethyl-R-Δ2-thiazoline-4-carboxamide, 2-aminomethyl-R-Δ2-thiazoline-4-carboxylic acid, 2-aminomethyl-R-Δ2-thiazoline-4-carbonyl-l-leucine were synthesized by either the iminoether coupling method or by the dehydration method using N-benzyloxycarbonyl group and benzyl ester as protecting groups.