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Preparation of spirocyclic oxindoles by cyclisation of an oxime to a nitrone and dipolar cycloaddition

Beth L. Ritchie, Alexandra Longcake and Iain Coldham

Beilstein J. Org. Chem. 2025, 21, 1890–1896. https://doi.org/10.3762/bjoc.21.146

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Chemical structure C<sub>17</sub>H<sub>17</sub>N<sub>3</sub>O<sub>4</sub>

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Extracted from

Scheme 3

Chemical Information

Calculated using the Chemistry Development Kit 2.12

Property Name	Property Value
Molecular Formula	C₁₇H₁₇N₃O₄
Molecular Weight	327.34 g/mol
Exact Mass	327.1219 Da
InChI	InChI=1S/C17H17N3O4/c1-18-10-6-4-3-5-9(10)17(16(18)23)7-11-12-13(24-20(11)8-17)15(22)19(2)14(12)21/h3-6,11-13H,7-8H2,1-2H3
InChIKey	KDCFXNDIODHFAG-UHFFFAOYSA-N
SMILES	CN1C2=C(C=CC=C2)C3(CC4C5C(C(=O)N(C)C5=O)ON4C3)C1=O
Number of Atoms	41
Number of H-Bond Acceptors	5
Number of H-Bond Donors	0
Atoms in the Largest π-System	9
XLogP	-1.4

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