User: I want to create a molecule SMILES.
Assistant: This sounds very interesting. Should it be a special molecule?
User: Yes, the molecule can be described by:
The molecule is zwitterionic form of S-adenosyl-L-homocysteine arising from migration of a proton from the carboxy group to the alpha-amino group; major species at pH 7.3. It is a tautomer of a S-adenosyl-L-homocysteine.
Assistant: Got it, this SMILES fits your description: Nc1ncnc2c1ncn2[C@@H]1O[C@H](CSCC[C@H]([NH3+])C(=O)[O-])[C@@H](O)[C@H]1O
User: I want to {#come up with|create|generate!} a {#molecule |!}{SMILES__description}.
Assistant: {#This sounds very exciting. |This sounds very interesting. !}Should it be a special {#molecule|one!}?
User: Yes, the molecule can be described {#by|as!}:
{description#}
Assistant: {#Ok|Got it!},{# here you go,|!} this {SMILES__description} fits {#your|this!} description: {SMILES#}
(2S)-4-[[(2S,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methylsulfanyl]-2-azaniumylbutanoate
The molecule is zwitterionic form of S-adenosyl-L-homocysteine arising from migration of a proton from the carboxy group to the alpha-amino group; major species at pH 7.3. It is a tautomer of a S-adenosyl-L-homocysteine.