2-[(3S,3aS,4R,5R,7R,7aR)-7-(2-aminopurin-9-yl)-3,3a,4-trihydroxy-2,3,4,5,7,7a-hexahydrofuro[3,2-d]pyran-5-yl]-2-[[(2S)-2-amino-5-(carbamimidoyl-hydroxy-amino)pentanoyl]amino]acetic acid dihydrochloride