1. Begin with a cyclopropane ring numbered 1-3.
- C1 carries two distinct methyl groups (so C1 is quaternary).
- C2 also carries two distinct methyl groups (making C2 quaternary).
- C3 is bonded to a single hydrogen and, via a methylene (-CH2-) link, to an NH group.

2. This NH group is connected to a sulfonyl sulfur atom, which is double bonded to two oxygens. The sulfur's other single bond goes to a phenyl ring bearing a single N-methylamino substituent (-NHCH3) at the para position(only one substitution on that ring).

No stereochemistry is specified.