- 作者: 瀨邊惠鎧; 阿部誠之; 村瀨紀芳; 柴田妤司
- 作者服務機構: Institute of Nakataki Pharmacy, Tokyo Japan
- 中文摘要:
The ultraviolet absorption spectra of berbines and φ-berbines consist of a single, weak and narrow band in which λmax position dependeds on the kind of auxochrome group i. e., ,methylenedioxy- or dimethoxy group attached to 2-3 position. The effect of the auxochrome group at 11-12 position or 12-13 position is very small.
The shape of the band of oxyberberine, oxy-φ-berberine and oxyprotoberberine are similar, especially those of the latter two substances resemble closely.
Comparing with isoquinoline, the bands (b), (c) and (d) of G-berberines and protoberberine are considered as characeteristic of isoquinoline structure, while the band (a) in visible region is of berberinium structure, while the band (a) in visible region is of berberinium structure, however, the absorption curve ofφ-berberines does not show any characteristic of isoquinoline or beberinium structure. - 英文摘要: --
- 中文關鍵字: --
- 英文關鍵字: --