1,5-Dideoxy-1,5-imino-L-fucitol 3,4,5-Piperidinetriol, 2-methyl-, (2S,3R,4S,5R)- 99212-30-3 AIDS-001134 AIDS001134 Deoxyfuconojirimycin FT L-fuco-Deoxynojirimycin