[H] [C@@] 12 CC [C@H] ([C@H] (C) CCC (O) = O) [C@@] 1 (C) [C@@H] (O) C [C@@] 1 [C@@] ([H]) 2 ([H]) CC (C@) 2 ([H]) C [C@H] (O) CC C@ 12 C

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