+++ виллюха спасибо, eFo!

[Cherep]

1) 13C NMR spectroscopy of indole derivatives
M. S. Morales-Ríos, J. Espiñeira, P. Joseph-Nathan
Magnetic Resonance in Chemistry
Volume 25, Issue 5, pages 377–395, May 1987

DOI:

http://dx.doi.org/10.1002/mrc.1260250502

2) COLOC-S: A modified COLOC sequence for selective long-range X-H correlation 2D NMR spectroscopy†
V. V. Krishnamurthy, John E. Casida
Magnetic Resonance in Chemistry
Volume 25, Issue 10, pages 837–842, October 1987

DOI:

http://dx.doi.org/10.1002/mrc.1260251002

(хочу убедится, что коллега 5-mrthoxy прав)

3) NMR studies of indoles and their N-carboalkoxy derivatives
M. S. Morales-Ríos, P. Joseph-Nathan
Magnetic Resonance in Chemistry
Volume 25, Issue 10, pages 911–918, October 1987

DOI:

http://dx.doi.org/10.1002/mrc.1260251016

4) Azolides. VII—Restricted rotation in N-acylindoles and carbazoles. Anisotropy effect of the carbonyl group
José Elguero, Claude Marzin, Michael E. Peek

DOI:

http://dx.doi.org/10.1002/mrc.1270070910

Organic Magnetic Resonance
Volume 7, Issue 9, pages 445–450, September 1975

Спасибо!!!

[eFo]