The iridoids are a class of monoterpenes with powerful and varied biological activities. They include insecticides, agents of defense against predatory insects, and animal attractants. The following reaction sequence is a synthesis of neonepetalactone, one of the nepetalactones, which are primary constituents of catnip. Use the information given to deduce the structures that have been left out, including that of neonepetalactone itself. 

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CHO Cr0, H,So,, 0°C Base CH,OH, H* C10H1602 C10H1402 M IR: 890, 1645, 1725 (very strong), and 1705 cm IR: 890, 1630, 164ю, 1720, and 3000 (very broad) cm 1. Dicyclohexylborane, THF 2. НО Н.О. H", H,O, A C|H16O2 C„H18O3 P Neonepetalactone IR: 890, 1630, 1640 and 1720 cm IR: 1630, 1720, and 3335 cm IR: 1645 and 1710 cm UV Amay = 241 nm I-