Lewis W. Cary

A 13c-n.m.r. study of a di- and a tri-saccharide containing the α-d-galactopyranosyl group

Abstract The 13 C-n.m.r. spectra of methyl 4- O -α- d -galactopyranosyl-α- d -galactopyranoside ( 1 ) and methyl 4- O -[4- O -(α- d -galactopyranosyl)-β- d -galactopyranosyl]-β- d -glucopyranoside ( 2 ) in D 2 O were recorded. Comparison of these spectra with the spectra of methyl α- d -galactopyranoside ( 4 ) and methyl β-lactoside (5) provided substantial confirmation of the structures of 1 and 2 .

Utilization of 13C–13C coupling in structural and biosynthetic studies; the Fourier transform 13C nuclear magnetic resonance spectrum of mollisin

The biosynthetic pathway to mollisin has been clarified by the use of [1,2-13C]acetate and FT 13C-n.m.r.

Time‐share synthesizer NMR

A method using a frequency synthesizer to operate both the transmitter and local oscillator in an FT–NMR spectrometer is described. This method facilitates multi‐nuclear operation.

A new triterpene lactone from Gymnocladus dioica

Abstract 2β,23-Dihydroxyacacic acid lactone was isolated from Gymnocladus dioica as an artifact from 2β, 3β 16β, 21β, 23-pentahydroxyolean-12-ene-28-oic acid.