Task: Please generate a SMILES based on the description below.
Description: The molecule is a nucleoside analogue having methyl (2S)-4-(4,6-dimethyl-9-oxo-4,9-dihydro-3H-imidazo[1,2-a]purin-7-yl)-2-[(methoxycarbonyl)amino]butanoate as the modified nucleobase. It is a nucleoside analogue, a methyl ester and a carbamate ester. It derives from a guanosine.
Result: COC(=O)N[C@@H](CCc1c(C)nc2n(C)c3c(ncn3[C@@H]3O[C@H](CO)[C@@H](O)[C@H]3O)c(=O)n12)C(=O)OC
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
COC(=O)N[C@@H](CCc1c(C)nc2n(C)c3c(ncn3[C@@H]3O[C@H](CO)[C@@H](O)[C@H]3O)c(=O)n12)C(=O)OC
methyl (2S)-4-[3-[(2R,3R,4S,5R)-3,4-dihydroxy-5-(hydroxymethyl)oxolan-2-yl]-4,6-dimethyl-9-oxoimidazo[1,2-a]purin-7-yl]-2-(methoxycarbonylamino)butanoate
The molecule is a nucleoside analogue having methyl (2S)-4-(4,6-dimethyl-9-oxo-4,9-dihydro-3H-imidazo[1,2-a]purin-7-yl)-2-[(methoxycarbonyl)amino]butanoate as the modified nucleobase. It is a nucleoside analogue, a methyl ester and a carbamate ester. It derives from a guanosine.