Detail of "3966-32-3"

Reference

Enantiospecific synthesis of g-keto-a,b-diamino acid derivatives

Enantiospecific synthesis of g-keto-a,b-diamino acid derivatives. Stereoselective synthesis of a precursor of streptolidine lactam. Fernandez-Megia, Eduardo; Sardina, F. Javier (Dep. Quimica Organica, Univ. Santiago de Compostela, Santiago de Compostela 15706, Spain). Tetrahedron Letters, 38(4), 673-676 (English) 1997 Elsevier. 3966-32-3 and 187157-73-9 are cas registry numbers of chemicals which are used as reagents here. CODEN: TELEAY. ISSN: 0040-4039. DOCUMENT TYPE: Journal CA Section: 33 (Carbohydrates) Section cross-reference(s): 34 The reaction of di-Me (4S,5S)-I (R = OMe, R1 = 9-phenyl-9-fluorenyl) with several organolithium reagents, RLi, afforded the corresponding enantiomerically pure monoketones I (R = Me, CH2Cl, Bu, Ph, C(OEt):CH2, R1 = 9-phenyl-9-fluorenyl) in good to excellent yields. I (R = CH2Cl, R1 = 9-phenyl-9-fluorenyl) was ultimately transformed into ureido-amide II (R1 = 9-phenyl-9-fluorenyl, R2 = benzyl, X = O) which incorporates the bicyclic core of streptolidine lactam II (R1 = R2 = H, X = NH), a component of the streptothricin antibiotics. .

Acetylene compounds of potential pharmacological value

Acetylene compounds of potential pharmacological value. XXIV. Some optically active N-(4-tert-amino-1-methyl-2-butynyl)-substituted succinimides and 2-pyrrolidones and their absolute configurations. Lindquist, Ake; Ringdahl, Bjorn; Svensson, Uno; Dahlbom, Richard (Biomed. Cent., Univ. Uppsala, Uppsala, Swed.). Acta Chem. Scand., Ser. 3966-32-3 and 61448-40-6 which are cas registry numbers are also used here. B, B30(6), 517-20 (English) 1976. CODEN: ACBOCV. DOCUMENT TYPE: Journal CA Section: 27 (Heterocyclic Compounds (One Hetero Atom)) The enantiomers of I (n = 0) and II (n = 0, 2) were prepd. from the enantiomers of 1-methyl-2-propynylamine. As oxotremorine antagonists. The abs. configurations of the optically active compds. were established by correlation to (S)-1-methylpropylamine and to (R)-alanine. .