Task: Please generate a molecule SMILES based on the text description below.
Description: The molecule is the second intermediate in the biosynthesis of vitamin B12 from uroporphyrinogen III, in which methyl groups have been introduced at positions 2 and 7 of the tetrapyrrole framework. It has a role as an Escherichia coli metabolite. It is a precorrin and a member of isobacteriochlorins. It is a conjugate acid of a precorrin-2(7-).
Result: C[C@@]1(CC(=O)O)C2=N/C(=C\c3[nH]c(c(CCC(=O)O)c3CC(=O)O)Cc3[nH]c(c(CC(=O)O)c3CCC(=O)O)/C=C3\N/C(=C\2)[C@@H](CCC(=O)O)[C@]3(C)CC(=O)O)[C@H]1CCC(=O)O
Task: Please {#give me|create|generate!} a {#molecule |!}{SMILES__description} based on the {#text |!}description{# below|!}.
Description: {description#}
Result: {SMILES#}
3-[(1Z,2S,3S,4Z,15Z,17S,18S)-8,12,17-tris(2-carboxyethyl)-3,7,13,18-tetrakis(carboxymethyl)-3,18-dimethyl-2,10,17,21,22,23-hexahydroporphyrin-2-yl]propanoic acid
The molecule is the second intermediate in the biosynthesis of vitamin B12 from uroporphyrinogen III, in which methyl groups have been introduced at positions 2 and 7 of the tetrapyrrole framework. It has a role as an Escherichia coli metabolite. It is a precorrin and a member of isobacteriochlorins. It is a conjugate acid of a precorrin-2(7-).