C. Schiele

Dispiro-[1,3,3-trimethylindolin-2,2′-(2′H,8′H)benzo[1,2-b;3,4-b] dipyran-8′,2″-1″,3″,3″-trimethylindolin]

H. Kalinowski, C. Schiele, S. Arnold, 1967 .

Synthese von N‐Methyl‐spiro‐[3H‐naphtho[2,1‐b]‐pyran‐3,2′‐(1,2‐dihydrochinolin)]

H. Kalinowski, C. Schiele, 1966 .