Substituent increments for the 1H-NMR. Chemical shifts of the 18- and 19-methyl protons of steroids. Part II: 9alpha, 10beta(normal)-steroids

In Part II of this series we report 292 substituent increments for the ¹H-NMR. chemical shifts (solvent: CDCl₃) of the 18- and 19-methyl protons of 9α,10β(normal)-steroids relative to 5α,9α,10β,-androstane. The increments were calculated by a least-squares procedure from 988 spectra of 681 different steroids.