A method for producing an alkyl -7-2-cyclopropyl-4-quinolin-3-yl-3,5-dihydroxy-6-heptenoate of the formula, which is an intermediate for a cholesterol-reducing agent, etc. The bolt member includes a latch bolt spring-loaded towards an extended locking position and operative to yield towards a less extended position when encountering a stationary part of a coaming when positioned in its locking position. The system includes a transmitter unit, receivers on the user providing data to the interface. 5 degrees, optionally at least substantially zero degrees. The system also includes an oxidizer in fluid communication to receive the halo-containing compound and oxidize the compound to transform the halo-containing compound into a hydrogen and halo-containing compound.