.beta.-D-glucopyranoside, [(2R,3S,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)-2-piperidinyl]methyl 2,6-Dideoxy-2,6-imino-7-O-.beta.-D-glucopyranosyl-D-glycero-L-gulo-heptitol hydrochloride hydrate AIDS-011258 AIDS011258 NSC630254