Task: Please create a text description for a molecule.
SMILES: C[C@]1(O)c2[nH]c(c(CCC(=O)O)c2CC(=O)O)Cc2[nH]c(c(CC(=O)O)c2CCC(=O)O)/C=C2\N/C(=C\C3=N[C@]14OC(=O)C[C@@]4(C)[C@@H]3CCC(=O)O)[C@@](C)(CC(=O)O)[C@@H]2CCC(=O)O
Constraint: Answer the question with full sentences.
Result: The molecule is the intermediate in the biosynthesis of vitamin B12 from uroporphyrinogen III in which three methyl groups have been introduced at positions 2, 7 and 20 of the tetrapyrrole framework and in which the carboxymethyl group at position 2 has been oxidised to form a lactone ring. It is a conjugate acid of a precorrin-3B(7-) and a precorrin-3B(6-).
Task: Please create a {#text |!}description for a molecule{# based on its representation|!}.
{#Molecule |!}{SMILES__description}: {SMILES#}
Constraint: Answer the question with {#full|complete!} sentences.
Result: {description#}
C[C@]1(O)c2[nH]c(c(CCC(=O)O)c2CC(=O)O)Cc2[nH]c(c(CC(=O)O)c2CCC(=O)O)/C=C2\N/C(=C\C3=N[C@]14OC(=O)C[C@@]4(C)[C@@H]3CCC(=O)O)[C@@](C)(CC(=O)O)[C@@H]2CCC(=O)O
3-[(1R,2S,12Z,14S,15S,16Z,19S,20S)-5,9,19-tris(2-carboxyethyl)-4,10,15-tris(carboxymethyl)-2-hydroxy-2,15,20-trimethyl-22-oxo-23-oxa-24,25,26,27-tetrazahexacyclo[16.5.1.13,6.18,11.113,16.01,20]heptacosa-3,5,8,10,12,16,18(24)-heptaen-14-yl]propanoic acid
The molecule is the intermediate in the biosynthesis of vitamin B12 from uroporphyrinogen III in which three methyl groups have been introduced at positions 2, 7 and 20 of the tetrapyrrole framework and in which the carboxymethyl group at position 2 has been oxidised to form a lactone ring. It is a conjugate acid of a precorrin-3B(7-) and a precorrin-3B(6-).