Report - 3C 28 ( (16 (20 k) 0 Gabriel (A) Hofmann (A) OH OH OH N02 ...28 ( (16 (20 k) 0 Gabriel (A) Hofmann (A) OH OH OH N02 N02 (10 (20 O Y Claisen (5) (pyrrole) (10 HCI @ N02 H2, Ni NaN02,

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