The sale at York and Bremner is on the SW corner, extending south to Lakeshore / Gardiner. This is directly across York Street from the Maple Leaf Square site, and across the street the other way (east of) the Infinity site. It's a pretty large property (3.320 acres), and sold at a rate of $257 per square foot. Don't know what will go there; it will be interesting to see. The purchaser is Cadillac Fairview. The vendor is affiliated with CP, and this is one of the last remaining blocks of the old railway lands.
As a direct comparison, the sale of the Maple Leaf Square site of 2.094 acres was registered in March (although no doubt negotiated a year or so earlier), at $29,280,000 or $321 per square foot. MLS will be built to a fairly high density (12.5 times coverage) and the comparison indicates that this recent sale likely would be as well.
1815 Yonge Street: This is the old Milnes fuel oil office building on the SE corner of Yonge and Merton, probably familiar to many people as it can be seen from the subway just south of Davisville. The reported sale price is a bit misleading because it also included another property in Etobicoke. The purchaser is Cresford, and this will almost certainly be a condo site.
Another recent big downtown sale is 181 Richmond Street West, between Simcoe and Duncan, currently a parking lot, sold for $27,000,000. The price is equivalent to $593 per square foot, an incredibly high price IMO. Again, they will have to get a high density approved to justify that. The purchaser is Aspen Ridge.