You can buy Réminiscence perfumes in the US at Yos Miami. They carry the largest selection and amongst others, you will be able to find the following: Patchouli, Musc, Ambre retail $75 for 100 ml; Patchouli for Men and Reminiscence for Men are available for $72 for 100 ml. These are purchasable online.....
If you live in New York City, Boutique Mirabelle carries the Réminiscence fragrances as well, but at a higher price point although they told me they are working on revising their prices. A 100 ml bottle of Patchouli and Ambre currently retails for $97. Patchouli is also available in 200 ml bottles for $129. (Their email does not work by the way).
If you live in Dallas, there is a boutique called Nuage that carries Patchouli and just Patchouli, $75 for 100 ml and $100 for 200 ml.