2005 Oxazine derivatives R 0595 Synthesis of First Spiropyrans and Spirooxazines Based on Thieno[3,2-b]pyrroles (no yields given). — (KRAYUSHKIN*, M. M.; SHIRINIAN, V. Z.; NIKALIN, D. 02- 161 — M.; Russ. Chem. Bull. 53 (2004) 3, 720-721; Zelinsky Inst. Org. Chem., Russ. Acad. Sci., Moscow 117913, Russia; Eng.) — M. Schroeter
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