| 摘要 |
Title compds. (I; R=C lower alkyl, phenyl. lower alkoxy-phenyl;q=1-5: m=1-3; n=0-8), which are active in inhibiting Shay, stress, aspirin, histamine, and indomethacin-induced ulcers in rats and have oral LD50 values) 10,000 mg/kg. Thus, N-acetyl-DL-carnosine in H2O at 40≦̸C was mixed with Al isopropoxide in iso-PrOH, filtered, and evapd. to give a quant. yield of a colorless powder of I(R=Me; q=1; m=1; n=2)≮m.p.; 210≦̸C decompn.)≉.
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