The following compound isolated from a marine sponge has been found to have anti-tubercular activity (Tet. Lett. 2007, 8851). Show how it may be constructed by an aldol reaction by drawing a structure of the starting material. 
Definitions:
Partnership
A business structure where two or more individuals share ownership, as well as the profits or losses of the business.
Capital Balances
The amount of money or value of assets that a company or an individual has invested in a business.
Net Income
The profit of a company after all expenses, including taxes and operating costs, have been subtracted from total revenues.
Time Devoted
The amount of time that is spent on a particular activity or task.
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