Develop syntheses for the following compounds. As starting materials, you may use cyclopentanol, alcohols containing no more than four carbon atoms, and any common reagents and solvents. (c)

Verified step by step guidance

1. Identify the target molecule as a substituted cyclopentane with an ethyl and a methoxy group.
2. Start with cyclopentanol as the base structure and consider how to introduce the substituents.
3. Use a Grignard reaction to introduce the ethyl group. Convert cyclopentanol to cyclopentyl bromide, then react with ethyl magnesium bromide.
4. To introduce the methoxy group, consider using a Williamson ether synthesis. Convert the alcohol to an alkoxide and react with an appropriate alkyl halide.
5. Ensure the correct stereochemistry and regiochemistry by considering the reaction conditions and possible rearrangements.