Polycyclic N-hetero compounds. XVIII. Synthesis of the 11,13,15-triazasteroidal skeleton with an oxygen function at C-17.
作者:TAKASHI HIROTA、KIMIKO KATSUTA、KEIKO KAWANISHI、TETSUTO NAMBA、KENJI SASAKI、SHOHEI HAYAKAWA
DOI:10.1248/cpb.33.30
日期:——
N-(5, 6-Dihydro-4-benzo [h] quinazolinyl) amino acids (III and VII) were synthesized by condensation of 4-chloro-5, 6-dihydrobenzo [h] quinazoline (II) with several amino acids and were cyclized to 4, 5-dihydrobenz [h] imidazo [1, 2-c] quinazoline derivatives, i.e., 11, 13, 15-triazasteroidal compounds (IV, V, VI, VIII, and IX) using phosphoryl chloride or acetic anhydride. An oxygen function could be introduced at C-1 of 4, 5-dihydrobenz [h] imidazo [1, 2-c] quinazoline, i.e., C-17 of the 11, 13, 15-triazasteroidal compounds.
N-(5, 6-二氢-4-苯并[h]喹唑啉基)氨基酸(III和VII)通过将4-氯-5, 6-二氢苯并[h]喹唑啉(II)与几种氨基酸缩合合成,并使用磷酸氯化物或醋酸酐环化成4, 5-二氢苯[h]咪唑[1, 2-c]喹唑啉衍生物,即11, 13, 15-三氮类类固醇化合物(IV, V, VI, VIII和IX)。可以在4, 5-二氢苯[h]咪唑[1, 2-c]喹唑啉的C-1位置引入氧功能,即在11, 13, 15-三氮类类固醇化合物的C-17位置引入。