 Okay, so this reaction actually should be reviewed for you after going through organic one. This is the solvolis' reaction of the alkyl halide, in fact, the tertiary alkyl halide you see, with methanol. So what this will do is do an SN1 reaction using methanol as the eventual nucleophile, the solvent as the eventual nucleophile. So remember methanol, of course, is polar due to the just like water. This portion of it has a very strong dipole moment this way, so it gives it a very polar characteristic. In fact, it's polar this way, too. So the overall molecule is a polar solvent. So what that will do is tend to pull the ion away, the good leaving group away from the alkyl halide or the eventual alkyl group because you've got a tertiary carbocat ion that's going to form. So let's just show that mechanism really quick. So again, then you lose that stereochemistry there. The other thing we say, you have to balance charges on both sides of the reaction. So that's your SN1 reaction. That only occurs when you've got a tertiary alkyl halide or secondary, but usually tertiaries and very polar solvents because it can separate, it can do that charge separation, you understand? Do you get that? So then let's just take these dipole arrows off of this one and use it. So methanol's in there. Once it sees that positive charge, of course, that's like super electrophile, right? This is nucleophile because it's got these electrons here, of course. This could come back and attack, but that's a nonproductive reaction, I'll go back the other way. In fact, it'll racemize the stardium material, you see. So anyways, this will come in an attack there. And remember, this center, just like all carbocat ions, is sp2 hybridized. So it's planar, trigonal planar, so it can attack from the top or the bottom or the front or the back, so you're going to get effectively a racemic mixture, essentially. I mean, you've got some sort of steric hindrance here, but it's quite far away from the reactive portion of the molecule. You may get a higher concentration of one or the other, but I don't know if it's too easy to tell without actually doing the reaction. So anyways, we'll just do one of them in an antitumor, because again, it could attack from the front or the back. I think it's good to show this one, to emphasize the fact that we didn't get a version of configuration. And of course, since methanol's the solvent, you might think of it like this, like we sometimes write in excess, so there's another methanol molecule hanging around somewhere. And it's going to deprotonate and give us the final product, see this on the video. Plus, it's an antitumor. So you make, essentially, you make an ether out of a, in this case, a tertiary alkyl halide. So you take a tertiary alkyl halide, react it with an alcohol ether, but it's a racemic mixture of these two ethers, because of the SN1 nature of the reaction. Are there any questions? Sure. Okay, yeah, you guys should know that one, since last semester you did it. Okay, cool.