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Porphyrins with Exocyclic Rings. Part 18. Syntheses of per-15N Labeled Etioporphyrins I—IV and a Related Tetrahydrobenzoporphyrin for Applications in Organic Geochemistry and Vibrational Spectroscopy.Timothy D. Lash; Shaohua Chen · 2006
Porphyrins with exocyclic rings. Part 8. Synthesis of nitrogen-15 and carbon-13 labeled 2,3:7,8:12,13:17,18-tetrabutanoporphyrinShaohua Chen; Timothy D. Lash · 1997